Fat composition

Abstract

The present invention relates to a fat composition. The oil and fat composition of the present invention, which contains triglyceride, satisfies SSU / S2U of greater than 0.6 in terms of weight ratio, wherein S represents a saturated fatty acid residue of the same or different carbon number of 12 to 30; U represents an unsaturated fatty acid residue of the same or different carbon number of 16 to 30; SSU represents a triglyceride in which 1, 2 positions are S and 3 position is U; and S2U represents a triglyceride in which 2 molecules of S and 1 molecule of U are combined. The oil and fat composition of the present invention is a non-lauric acid type, non-trans acid, non-tropical, and high DAG content oil and fat composition, which has excellent properties.

Description

Technical Field

[0001] This invention relates to fat compositions. Background Technology

[0002] Cocoa butter (CB) is a vegetable fat with unique composition and physical properties. Together with cocoa powder, it imparts the distinctive flavor and edible characteristics of chocolate. The melting properties and flavor release of chocolate largely depend on the unique properties of cocoa butter. Due to the limited global production and high price of cocoa butter, which falls far short of the food industry's needs, cocoa butter substitutes are widely used. There are three main types: Lauric acid-type cocoa butter substitutes (CBS) are made from coconut oil and palm kernel oil through fractionation or hydrogenation processes. They require no tempering, have similar melting characteristics to cocoa butter, and possess a simple crystal structure, directly crystallizing into a stable β' crystal form. However, CBS contains high levels of lauric acid, which easily hydrolyzes to produce a soapy taste. When mixed with CB, cocoa butter substitutes (CBE), or milk fat, poor compatibility can easily lead to blooming in the product. Furthermore, it contains high levels of saturated fatty acids, increasing the risk of obesity and cardiovascular disease. Non-lauric cocoa butter substitutes (CBR) are typically produced using non-lauric oils such as soybean oil, cottonseed oil, and palm oil through partial hydrogenation and fractionation processes. They require no tempering, have a good luster, and a wider melting point range, but their shrinkage is not as significant as CB and CBS, resulting in poorer mouth melting and a waxy feel, which is detrimental to the flavor release of chocolate. CBR usually contains more than 40% trans fatty acids. Long-term intake of trans fatty acids can raise low-density cholesterol levels in the blood, increasing the risk of coronary heart disease and other health problems. Therefore, with increasing public concern about health, low trans acid and lauric acid-free foods have become new requirements for consumers. CBE and CB meet the requirements for non-trans acid and non-lauric acid, have similar triglyceride compositions (mainly SUS symmetrical triglycerides with oleic acid at the sn-2 position), and exhibit polymorphism, allowing them to be compatible in any proportion. However, they are more expensive and require tempering during chocolate processing, resulting in higher production costs and stricter processing conditions. Therefore, the industry has conducted extensive research on the development of confectionery base oils that are free of trans fatty acids, lauric acid, and non-temperature-adjusted base oils, and that can provide good processing characteristics and product quality.

[0003] US4839192 describes a stearic acid fat composition for chocolate, the main component of which is a SUS-type glyceride, with an SUS content of 50%, more preferably 65%, which improves high-temperature heat resistance and anti-blooming properties.

[0004] WO2009007105 describes a CBR method for obtaining low trans fatty acids, non-lauric acid, and non-temperature-controlled products, but the product contains high levels of saturated fatty acids and SUS triglycerides.

[0005] WO03080779 describes a method for preparing a low-trans-fat composition for confectionery and baking applications. However, this method involves catalytic hydrogenation of a raw material fat containing palm oil or palm oil fractions. Although the trans acid content is reduced through formulation, a certain amount of trans acid is still present.

[0006] CN100574622C describes a fatty composition with low lauric acid, low trans acid and fast solidification rate, wherein the total amount of S2U triglycerides is 35-90%, SSU / SUS>1 and S3<15%, but it still contains a certain amount of C18 trans unsaturated fatty acids.

[0007] US8357421B describes a coating grease composition containing 10-20% S3, ≥70% S2U, 45-65% SUS, 10-18% SSU, and an SUS / SSU ratio of 3-6.

[0008] However, there is still a need for a low trans acid, non-lauric acid, non-temperature-controlled fat composition that has a fast crystallization rate and can significantly improve the heat resistance, anti-blooming, anti-cracking, gloss, and mouthfeel of chocolate products. Summary of the Invention

[0009] This invention provides a non-lauric, non-trans, non-temperature-adjusted high diglyceride (DAG) content fat composition for chocolate, which has significantly improved chocolate quality characteristics such as fast crystallization rate, good anti-blooming properties, gloss, and good mouth melting properties.

[0010] This invention provides an oil composition containing triglycerides, wherein the composition, by weight, satisfies an SSU / S2U ratio greater than 0.6, wherein S represents saturated fatty acid residues with 12 to 30 carbon atoms (either the same or different); U represents unsaturated fatty acid residues with 16 to 30 carbon atoms (either the same or different); SSU represents a triglyceride with S at positions 1 and 2 and U at position 3; and S2U represents a triglyceride containing 2 molecules of S and 1 molecule of U.

[0011] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio greater than 0.7 by weight.

[0012] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio of 0.75 to 0.99 by weight.

[0013] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio of 0.8 to 0.99 by weight.

[0014] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio of 0.85 to 0.98 by weight.

[0015] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio of 0.9 to 0.98 by weight.

[0016] According to the composition of the present invention, the composition satisfies an SSU / S2U ratio of 0.95 to 0.98 by weight.

[0017] The composition according to the invention further contains, by weight, greater than 0 and less than or equal to 15 wt% diglycerides.

[0018] The composition according to the invention further contains, by weight, 1 to 15 wt% diglycerides.

[0019] The composition according to the invention further contains, by weight, 5 to 12 wt% diglycerides.

[0020] According to the composition of the present invention, the composition, by weight, satisfies that the content of SSS is greater than 0 and less than or equal to 20 wt%, where SSS represents triglycerides bound with 3 molecules of S.

[0021] According to the composition of the present invention, the composition satisfies the requirement that the content of SSS is 2 to 18 wt%, where SSS represents triglycerides bound with 3 molecules of S.

[0022] According to the composition of the present invention, the composition satisfies the requirement that the content of SSS is 3 to 15 wt%, where SSS represents triglycerides bound with 3 molecules of S.

[0023] According to the composition of the present invention, the composition satisfies the condition that the St2O / S2U ratio is 0.5 to 0.95 by weight, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents a triglyceride containing 2 molecules of St and 1 molecule of O.

[0024] According to the composition of the present invention, the composition satisfies the condition that the St2O / S2U ratio is 0.55 to 0.9 by weight, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents triglycerides bound with 2 molecules of St and 1 molecule of O.

[0025] According to the composition of the present invention, the composition satisfies the following St2O / S2U ratio by weight: 0.6 to 0.85, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents triglycerides bound with 2 molecules of St and 1 molecule of O.

[0026] According to the composition of the present invention, the composition satisfies the following St2O / S2U ratio of 0.65 to 0.8 by weight, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O.

[0027] According to the composition of the present invention, the composition satisfies an S2U of 40 to 95 wt% by weight.

[0028] According to the composition of the present invention, the composition satisfies an S2U of 55 to 93 wt% by weight.

[0029] According to the composition of the present invention, the composition satisfies an S2U of 65 to 92 wt% by weight.

[0030] According to the composition of the present invention, the composition satisfies an S2U of 70 to 90 wt% by weight.

[0031] According to the composition of the present invention, the composition satisfies that SU2 is 0 to 20 wt% by weight, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

[0032] According to the composition of the present invention, the composition satisfies that SU2 is 1 to 18 wt% by weight, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

[0033] According to the composition of the present invention, the composition satisfies that SU2 is 2 to 15 wt% by weight, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

[0034] According to the composition of the present invention, the composition satisfies that UUU is less than 5 wt% by weight, where UUU represents a triglyceride with 3 molecules of U bound.

[0035] According to the composition of the present invention, the composition satisfies the condition that UUU is 0.1 to 4 wt% by weight, where UUU represents a triglyceride bound with 3 molecules of U.

[0036] According to the composition of the present invention, the composition satisfies that UUU is 0.3 to 3 wt% by weight, where UUU represents a triglyceride with 3 molecules of U bound.

[0037] According to the composition of the present invention, the composition satisfies (SU2+UUU) / S2U is 0.01 to 0.3 by weight, where SU2 represents a triglyceride with 2 molecules of U and 1 molecule of S, and UUU represents a triglyceride with 3 molecules of U.

[0038] According to the composition of the present invention, the composition satisfies (SU2+UUU) / S2U is 0.02 to 0.25 by weight, where SU2 represents a triglyceride with 2 molecules of U and 1 molecule of S, and UUU represents a triglyceride with 3 molecules of U.

[0039] According to the composition of the present invention, the composition satisfies an SSU content of 30 to 95 wt%.

[0040] According to the composition of the present invention, the composition satisfies an SSU content of 35 to 90 wt%.

[0041] According to the composition of the present invention, the composition satisfies an SSU content of 40 to 85 wt%.

[0042] According to the composition of the present invention, the composition satisfies (PStO+StPO) / S2U 0.01~0.5 by weight, where P represents palmitic acid residue, St represents stearic acid residue, O represents oleic acid residue, PStO is the 1st position of triglyceride representing palmitic acid residue P, the 2nd position of triglyceride representing stearic acid residue St, and the 3rd position of triglyceride representing oleic acid residue O, and StPO is the 1st position of triglyceride representing stearic acid residue St, the 2nd position of triglyceride representing palmitic acid residue P, and the 3rd position of triglyceride representing oleic acid residue O.

[0043] According to the composition of the present invention, the composition satisfies (PStO+StPO) / S2U 0.05~0.45 by weight, where P represents palmitic acid residue, St represents stearic acid residue, O represents oleic acid residue, PStO is the 1st position of triglyceride representing palmitic acid residue P, the 2nd position of triglyceride representing stearic acid residue St, and the 3rd position of triglyceride representing oleic acid residue O, and StPO is the 1st position of triglyceride representing stearic acid residue St, the 2nd position of triglyceride representing palmitic acid residue P, and the 3rd position of triglyceride representing oleic acid residue O.

[0044] According to the composition of the present invention, the composition satisfies (PStO+StPO) / S2U 0.1~0.4 by weight, where P represents palmitic acid residue, St represents stearic acid residue, O represents oleic acid residue, PStO is the 1st position of triglyceride representing palmitic acid residue P, the 2nd position of triglyceride representing stearic acid residue St, and the 3rd position of triglyceride representing oleic acid residue O, and StPO is the 1st position of triglyceride representing stearic acid residue St, the 2nd position of triglyceride representing palmitic acid residue P, and the 3rd position of triglyceride representing oleic acid residue O.

[0045] According to the composition of the present invention, the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 4 to 40.

[0046] According to the composition of the present invention, the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 7 to 35.

[0047] According to the composition of the present invention, the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 7 to 25.

[0048] According to the composition of the present invention, the amount of fatty acids with 14 or more carbon atoms in the composition accounts for 99 wt% or more of the total fatty acids by weight.

[0049] According to the composition of the present invention, the amount of fatty acids with 14 or more carbon atoms in the composition accounts for 99.5 wt% or more of the total fatty acids by weight.

[0050] According to the composition of the present invention, the amount of fatty acids with 14 or more carbon atoms in the composition accounts for 99.9 wt% or more of the total fatty acids by weight.

[0051] According to the composition of the present invention, the composition satisfies, by weight, the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.05 to 1 wt%.

[0052] According to the composition of the present invention, the composition satisfies, by weight, the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.08 to 0.9 wt%.

[0053] According to the composition of the present invention, the composition satisfies the condition that the St2L / S2U ratio is 0.01 to 0.30 by weight, where St represents stearic acid residue, L represents linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

[0054] According to the composition of the present invention, the composition satisfies the condition that the St2L / S2U ratio is 0.015 to 0.25 by weight, where St represents stearic acid residue, L represents linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

[0055] According to the compositions of the present invention, the composition satisfies a St2L / S2U ratio of 0.02 to 0.15 by weight, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue. According to the compositions of the present invention, the composition satisfies a St2L / S2U ratio of 0.05 to 0.12 by weight, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

[0056] The composition according to the present invention has a solid fat content of 75-90 wt% at 10°C, based on the total amount of the composition.

[0057] The composition according to the present invention has a solid fat content of 77-88 wt% at 10°C, based on the total amount of the composition.

[0058] The composition according to the present invention has a solid fat content of 68-85 wt% at 20°C, based on the total amount of the composition.

[0059] The composition according to the present invention has a solid fat content of 70-82 wt% at 20°C, based on the total amount of the composition.

[0060] The composition according to the present invention has a solid fat content of 60-85 wt% at 25°C, based on the total amount of the composition.

[0061] The composition according to the present invention has a solid fat content of 65-80 wt% at 25°C, based on the total amount of the composition.

[0062] The composition according to the present invention has a solid fat content of 30-65 wt% at 30°C, based on the total amount of the composition.

[0063] The composition according to the present invention has a solid fat content of 35-60 wt% at 30°C, based on the total amount of the composition.

[0064] The composition according to the present invention has a solid fat content of 5 to 25 wt% at 35°C, based on the total amount of the composition.

[0065] The composition according to the present invention has a solid fat content of 10-20 wt% at 35°C, based on the total amount of the composition.

[0066] The composition according to the present invention has a solid fat content of less than 10 wt% at 40°C, based on the total amount of the composition.

[0067] The composition according to the present invention has a solid fat content of less than 8 wt% at 40°C, based on the total amount of the composition.

[0068] The composition according to the present invention has a solid fat content of less than 5 wt% at 40°C, based on the total amount of the composition.

[0069] According to the composition of the present invention, the fatty acid composition of the composition satisfies that the amount of trans fatty acids is less than 1 wt% of the total fatty acids.

[0070] According to the composition of the present invention, the amount of trans fatty acids is less than 0.5 wt% of the total fatty acids by weight. According to the composition of the present invention, the amount of trans fatty acids is less than 0.2 wt% of the total fatty acids by weight.

[0071] According to the composition of the present invention, the amount of fatty acids with 12 or fewer carbon atoms in the composition accounts for less than 1 wt% of the total fatty acids.

[0072] According to the composition of the present invention, the amount of fatty acids with 12 or fewer carbon atoms in the composition accounts for less than 0.5 wt% of the total fatty acids.

[0073] According to the composition of the present invention, the amount of fatty acids with 12 or fewer carbon atoms in the composition accounts for less than 0.1 wt% of the total fatty acids.

[0074] According to the composition of the present invention, the fatty acid composition of the composition, by weight, satisfies that the sum of stearic acid and palmitic acid accounts for 50 to 80 wt% of the total fatty acids.

[0075] According to the composition of the present invention, the fatty acid composition of the composition, by weight, satisfies that the sum of stearic acid and palmitic acid accounts for 60 to 75 wt% of the total fatty acids.

[0076] According to the composition of the present invention, the fatty acid composition of the composition satisfies that the sum of the total amount of saturated acids and monounsaturated acids accounts for more than 90 wt% of the total fatty acids.

[0077] According to the composition of the present invention, the fatty acid composition of the composition satisfies that the sum of the total amount of saturated acids and monounsaturated acids accounts for more than 95 wt% of the total fatty acids.

[0078] According to the composition of the present invention, the amount of saturated fatty acids with 20 or more carbon atoms in the composition accounts for 0.1 to 0.5 wt% of the total fatty acids.

[0079] According to the composition of the present invention, the amount of saturated fatty acids with 20 or more carbon atoms in the composition accounts for 0.2 to 0.3 wt% of the total fatty acids.

[0080] This invention provides a method for preparing an oil and fat composition, the method comprising: (1) Contacting at least one fatty acid or its derivative with at least one highly hydrogenated oil and esterifying it; (2) Purification of the product obtained in step (1) by molecular distillation; (3) The product obtained in refining step (2).

[0081] According to the preparation method of the present invention, the method further includes the product obtained in the fractionation step (3) and / or step (2).

[0082] According to the preparation method of the present invention, the fractionation operation includes solvent fractionation and / or dry fractionation, preferably solvent fractionation.

[0083] According to the preparation method of the present invention, the solvent in the solvent fractionation is selected from at least one of acetone, cyclohexane, and petroleum ether, preferably acetone.

[0084] This invention provides a food product containing the oil composition described herein.

[0085] According to the food of the present invention, the composition is 0.01 to 50 parts by weight relative to 100 parts by weight of the total food.

[0086] According to the food of the present invention, the composition is 0.1 to 45 parts by weight relative to 100 parts by weight of the total food.

[0087] According to the food of the present invention, the composition is 1 to 40 parts by weight relative to 100 parts by weight of the total food.

[0088] The food product according to the present invention, relative to 100 parts by weight of total food product, also contains 1 to 20 parts by weight of cocoa powder, 10 to 50 parts by weight of sugar, and 0.1 to 5 parts by weight of phospholipids.

[0089] According to the present invention, the food is chocolate or a food containing chocolate.

[0090] The oil composition described in this invention is used in the preparation of food products.

[0091] Invention Effects This invention provides a non-lauric acid, non-trans acid, non-temperature-adjustable, high-DAG content oil composition, which exhibits excellent properties such as rapid crystallization rate, workability, anti-blooming properties, mouthfeel, anti-cracking properties, and mouth-melting properties. The oil composition can be used to prepare foods containing chocolate, etc., and can significantly enhance the characteristics of such foods.

[0092] Cocoa butter substitutes are mainly divided into lauric acid-type cocoa butter substitutes (containing high levels of lauric acid and requiring no tempering), non-lauric acid-type cocoa butter substitutes (produced through partial hydrogenation processes, usually containing high levels of trans acids and requiring no tempering), and cocoa butter-like substitutes (similar in composition and properties to natural cocoa butter and requiring tempering). The advantages and disadvantages of these three types have been described in the background. The oil composition of this invention contains low levels of lauric acid and trans fatty acids, both less than 1 wt%, and does not require tempering. Therefore, it is simply referred to as non-lauric acid-type, non-trans acid, and non-tempering.

[0093] Tempering, or chocolate tempering, refers to the process of using temperature changes and mechanical treatments to allow the cocoa butter in chocolate to form stable V-shaped crystals of the appropriate number and size within a specific timeframe. This allows the cocoa butter to crystallize rapidly in its stable form during subsequent cooling and solidification. There are many types of tempering processes. A traditional tempering process involves three steps: first, cooling from 40°C to 28-30°C, where the fats in the chocolate mixture begin to form tiny crystals, resulting in both stable and unstable crystal forms; then cooling further to 26-27°C, increasing the crystallization rate and viscosity of the chocolate mixture; finally, raising the temperature to 29-31°C, melting the unstable crystals with lower melting points while retaining the stable crystals. While tempering plays a crucial role in obtaining high-quality chocolate, affecting qualities such as shine, crispness, and bloom, the process is complex, requires stringent temperature conditions, and consumes a lot of energy, leading to high production costs.

[0094] High DAG content refers to DAG content of less than 5% in general oil compositions. A high amount of DAG affects oil crystallization, while the oil composition in this invention, although containing DAG, still has good application performance. Attached Figure Description

[0095] Figure 1 Crystallization rate of the fatty composition at 10°C. Detailed Implementation

[0096] Oil and fat composition The oil and fat composition of the present invention contains triglycerides, wherein the composition, by weight (based on the total amount of the composition), satisfies that SSU / S2U is greater than 0.6, wherein S represents saturated fatty acid residues with the same or different carbon atoms of 12 to 30; U represents unsaturated fatty acid residues with the same or different carbon atoms of 16 to 30; SSU represents triglycerides with S at positions 1 and 2 and U at position 3; and S2U represents triglycerides containing 2 molecules of S and 1 molecule of U.

[0097] In this invention, the saturated fatty acid residue or unsaturated fatty acid residue refers to the residue obtained by removing the hydroxyl group from the corresponding fatty acid. That is, a saturated fatty acid residue with 12 to 30 carbon atoms or an unsaturated fatty acid residue with 16 to 30 carbon atoms refers to the residue obtained by removing the hydroxyl group from the corresponding fatty acid.

[0098] Saturated fatty acid residues with 12 to 30 carbon atoms include, for example, lauric acid (C12:0) residues, myristic acid (C14:0) residues, palmitic acid (C16:0) residues, stearic acid (18:0) residues, arachidic acid (C20:0) residues, behenic acid (C22:0) residues, or tetracosanoic acid (C24:0) residues.

[0099] Unsaturated fatty acid residues with 16 to 30 carbon atoms include, for example, palmitoleic acid (C16:1) residues, oleic acid (18:1) residues, linoleic acid (18:2) residues, linolenic acid (18:3) residues, eicosenoic acid (C20:1) residues, or erucic acid (C22:1) residues.

[0100] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies an SSU / S2U ratio greater than 0.7, preferably 0.75 to 0.99, more preferably 0.8 to 0.99, further preferably 0.85 to 0.98, particularly preferably 0.9 to 0.98, and most preferably 0.95 to 0.98. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies an SSU / S2U ratio of 0.74, 0.91, 0.95, or 0.98.

[0101] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition (by weight), further contains greater than 0 and less than or equal to 15 wt% diglycerides, preferably 1 to 15 wt% diglycerides, and more preferably 5 to 12 wt% diglycerides. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition (by weight), contains 1.3 wt%, 6.5 wt%, 6.6 wt%, 6.8 wt%, 7.3 wt%, and 11.7 wt% diglycerides.

[0102] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies that the content of SSS is greater than 0 and less than or equal to 20 wt%, where SSS represents triglycerides bound with 3 molecules of S; preferably, the content of SSS is 2-18 wt%, where SSS represents triglycerides bound with 3 molecules of S; more preferably, the content of SSS is 3-15 wt%, where SSS represents triglycerides bound with 3 molecules of S. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies that the content of SSS is 3.6 wt%, 5.7 wt%, 6.8 wt%, 7.3 wt%, 7.5 wt%, 8.2 wt%, or 14.7 wt%.

[0103] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies an St2O / S2U ratio of 0.5 to 0.95, preferably 0.55 to 0.9, more preferably 0.6 to 0.85, and even more preferably 0.65 to 0.8, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies an St2O / S2U ratio of 0.58, 0.61, 0.66, 0.67, 0.78, or 0.83.

[0104] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies an S2U of 40-95 wt%, preferably 55-93 wt%, more preferably 65-92 wt%, and further preferably 70-90 wt%. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies an S2U of 63.6 wt%, 74.6 wt%, 75.7 wt%, 80.1 wt%, 80.8 wt%, 81.8 wt%, and 88.6 wt%.

[0105] In a preferred embodiment of the invention, the composition of the invention, by weight ratio (based on the total amount of the composition), satisfies that SU2 is 0-20 wt%, preferably 1-18 wt%, and more preferably 2-15 wt%, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S. In a specific embodiment of the invention, the composition of the invention, by weight ratio (based on the total amount of the composition), satisfies that SU2 is 2.4 wt%, 2.8 wt%, 4.5 wt%, 4.7 wt%, 8.3 wt%, 9.3 wt%, and 13.9 wt%.

[0106] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies that UUU is less than 5 wt%, preferably 0.1 to 4 wt%, and more preferably 0.3 to 3 wt%, where UUU represents triglycerides bound with 3 molecules of U. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies that UUU is 0.4 wt%, 0.6 wt%, 0.7 wt%, 1.1 wt%, 1.2 wt%, and 1.4 wt%.

[0107] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies (SU2+UUU) / S2U as 0.01 to 0.3, preferably as 0.02 to 0.25, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S, and UUU represents a triglyceride containing 3 molecules of U. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies (SU2+UUU) / S2U as 0.04, 0.05, 0.06, 0.07, 0.12, 0.13, or 0.24.

[0108] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies an SSU content of 30-95 wt%, preferably 35-90 wt%, and more preferably 40-85 wt%, where SSU represents a triglyceride with S at positions 1 and 2 and U at position 3. In a specific embodiment of the present invention, the composition of the present invention, by weight ratio (based on the total amount of the composition), satisfies an SSU content of 47.7 wt%, 68.9 wt%, 71.0 wt%, 76.3 wt%, 77.1 wt%, 80.2 wt%, and 87.2 wt%.

[0109] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies (PStO+StPO) / S2U of 0.01 to 0.5, preferably (PStO+StPO) / S2U of 0.05 to 0.45, more preferably (PStO+StPO) / S2U of 0.1 to 0.4, where P represents palmitic acid residue, St represents stearic acid residue, O represents oleic acid residue, PStO represents palmitic acid residue (P) at position 1 of the triglyceride, stearic acid residue (St) at position 2 of the triglyceride, and oleic acid residue (O) at position 3 of the triglyceride, and StPO represents stearic acid residue (St) at position 1 of the triglyceride, palmitic acid residue (P) at position 2 of the triglyceride, and oleic acid residue (O) at position 3 of the triglyceride. In specific embodiments of the present invention, the composition of the present invention, by weight ratio, satisfies (PStO+StPO) / S2U as 0.10, 0.11, 0.15, 0.18, 0.20, 0.21, or 0.30.

[0110] In a preferred embodiment of the invention, the composition of the invention, by weight (based on the total amount of the composition), satisfies the requirement that the content (sometimes expressed as C56) of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.05 to 1 wt%, preferably 0.08 to 0.9 wt%. In a specific embodiment of the invention, the composition of the invention, by weight (based on the total amount of the composition), satisfies the requirement that the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.1 wt%, 0.4 wt%, 0.5 wt%, 0.7 wt%, or 0.8 wt%.

[0111] The method for detecting fatty acids in the composition of the present invention is, for example, based on AOCS Ce 1-62, wherein the pretreatment is performed using the method recommended in AOCS Ce 1-62, AOCS Ce 2-66. In this invention, the weight ratio of a specific fatty acid methyl ester to the total fatty acid methyl esters detected according to AOCS Ce 1-62 is considered the weight ratio of a specific fatty acid to the total fatty acids in the composition of the present invention; the weight ratio of one specific fatty acid methyl ester to another specific fatty acid methyl ester detected according to AOCS Ce 1-62 is considered the weight ratio of one specific fatty acid to another specific fatty acid in the composition of the present invention.

[0112] In a preferred embodiment of the present invention, the composition of the present invention, by weight, has a stearic acid / palmitic acid ratio of 4 to 40, preferably 7 to 35, and more preferably 7 to 25. In a specific embodiment of the present invention, the composition of the present invention, by weight, has a stearic acid / palmitic acid ratio of 7.71, 7.99, 8.73, 9.20, 11.53, 15.80, or 16.91.

[0113] In a preferred embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition satisfying that the amount of fatty acids with 14 or more carbon atoms accounts for 99 wt% or more of the total fatty acids, preferably 99.5 wt% or more, and more preferably 99.9 wt% or more.

[0114] In a preferred embodiment of the present invention, the composition of the present invention, by weight ratio, satisfies that the St2L / S2U ratio is 0.01 to 0.30, preferably 0.015 to 0.25, more preferably 0.02 to 0.15, and even more preferably 0.05 to 0.12, where St represents stearic acid residue, L represents linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

[0115] In specific embodiments of the present invention, the composition of the present invention, by weight ratio, satisfies that the St2L / S2U ratio is 0.06, 0.08, 0.09, 0.10, or 0.21.

[0116] In a preferred embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition that satisfies the condition that the amount of trans fatty acids accounts for less than 1 wt% of the total fatty acids, preferably less than 0.5 wt%, and more preferably less than 0.2 wt%. Trans fatty acids mainly include 16-carbon trans fatty acids, 18-carbon trans fatty acids, and 20-carbon trans fatty acids, such as trans oleic acid (18:1), linoleic acid (18:2), and linolenic acid (18:3), preferably trans oleic acid (18:1) and linoleic acid (18:2). In the present invention, trans fatty acids are sometimes also referred to as trans acids.

[0117] In a preferred embodiment of the present invention, the composition of the present invention, by weight, comprises a fatty acid composition in which the amount of fatty acids having 12 or fewer carbon atoms accounts for 1 wt% or less of the total fatty acids, preferably 0.5 wt% or less, and more preferably 0.1 wt% or less. In the present invention, the amount of the fatty acids having 12 or fewer carbon atoms is expressed in terms of the amount of lauric acid.

[0118] In a preferred embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition in which the sum of stearic acid and palmitic acid accounts for 50-80 wt% of the total fatty acids, preferably 60-75 wt%. In a specific embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition in which the sum of stearic acid and palmitic acid accounts for 64.7 wt%, 65.8 wt%, 66.9 wt%, 67.9 wt%, 68.0 wt%, 69.3 wt%, and 71.7 wt% of the total fatty acids.

[0119] In a preferred embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition satisfying that the total amount of saturated acids and monounsaturated acids is 90 wt% or more, preferably 95 wt% or more. In a specific embodiment of the present invention, the composition of the present invention, by weight, has a fatty acid composition satisfying that the total amount of saturated acids and monounsaturated acids is 95.1 wt%, 96.3 wt%, 96.4 wt%, 96.5 wt%, or 96.6 wt%.

[0120] In this invention, saturated fatty acids include, for example, lauric acid (C12:0), myristic acid (C14:0), palmitic acid (C16:0), stearic acid (18:0), arachidic acid (C20:0), behenic acid (C22:0), or tetracosanoic acid (C24:0). Monounsaturated fatty acids include, for example, palmitoleic acid (C16:1), oleic acid (18:1), eicosenoic acid (C20:1), or erucic acid (C22:1).

[0121] In a preferred embodiment of the present invention, the composition of the present invention, by weight, contains 0.1 to 0.5 wt% saturated fatty acids having a carbon number of 20 or more, preferably 0.2 to 0.3 wt%. In a specific embodiment of the present invention, the composition of the present invention, by weight, contains 0.25 wt%, 0.26 wt%, 0.28 wt%, and 0.29 wt% saturated fatty acids having a carbon number of 20 or more.

[0122] Unless otherwise specified, all fatty acids described in this invention are straight-chain fatty acids.

[0123] In this invention, the triglycerides mainly include SSS-type triglycerides, S2U-type triglycerides, SU2-type triglycerides, and UUU-type triglycerides. In the SSS-type, S2U-type, SU2-type, and UUU-type triglycerides, S represents saturated fatty acid residues with 12 to 30 carbon atoms (either the same or different); U represents unsaturated fatty acid residues with 16 to 30 carbon atoms (either the same or different).

[0124] In the compositions of the present invention, the total composition contains 85-99.9 wt% triglycerides, preferably 85-99 wt% triglycerides, and more preferably 88-95 wt% triglycerides. In specific embodiments of the present invention, the compositions of the present invention contain 88.3 wt%, 92.5 wt%, 92.9 wt%, 93.4 wt%, and 97.7 wt% triglycerides, respectively.

[0125] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 75-90 wt% at 10°C, preferably 77-88 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 77.62 wt%, 79.19 wt%, 81.04 wt%, 81.25 wt%, 81.89 wt%, 82.64 wt%, and 87.43 wt% at 10°C. In the present invention, N10 is sometimes used to represent the solid fat content at 10°C.

[0126] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 68-85 wt% at 20°C, preferably 70-82 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 72.14 wt%, 74.81 wt%, 75.20 wt%, 79.61 wt%, 80.52 wt%, 81.08 wt%, and 81.98 wt% at 20°C. In the present invention, N2O is sometimes used to represent the solid fat content at 20°C.

[0127] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 60-85 wt% at 25°C, preferably 65-80 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 66.72 wt%, 71.93 wt%, 73.50 wt%, 73.99 wt%, 78.18 wt%, 79.09 wt%, and 79.20 wt% at 25°C. In the present invention, N25 is sometimes used to represent the solid fat content at 25°C.

[0128] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 30–65 wt% at 30°C, preferably 35–60 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 34.77 wt%, 35.34 wt%, 38.33 wt%, 40.37 wt%, 48.22 wt%, 48.85 wt%, and 58.83 wt% at 30°C. In the present invention, N30 is sometimes used to represent the solid fat content at 30°C.

[0129] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 5-25 wt% at 35°C, preferably 10-20 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content of 10.13 wt%, 12.54 wt%, 12.88 wt%, 14.59 wt%, 15.01 wt%, 16.29 wt%, and 18.77 wt% at 35°C. In the present invention, N35 is sometimes used to indicate the solid fat content at 35°C.

[0130] In a preferred embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content at 40°C of less than 10 wt%, preferably less than 8 wt%, and more preferably less than 5 wt%. In a specific embodiment of the present invention, the composition of the present invention, based on the total amount of the composition, has a solid fat content at 40°C of 0.40 wt%, 2.33 wt%, 2.56 wt%, 2.84 wt%, 2.86 wt%, 4.23 wt%, and 7.41 wt%. In the present invention, N40 is sometimes used to represent the solid fat content at 40°C.

[0131] Preparation method of oil and fat composition The oil and fat composition of the present invention can be prepared by the following method for preparing oil and fat compositions, the method comprising: (1) Contacting at least one fatty acid or its derivative with at least one highly hydrogenated oil and esterifying it; (2) purifying the product obtained in step (1) by molecular distillation; (3) refining the product obtained in step (2).

[0132] The esterification step is either chemical transesterification or enzymatic transesterification. The esterification step is carried out in the presence of immobilized lipase. The esterification step can be performed using conventional methods.

[0133] In the enzymatic transesterification process, the lipase can be a lipase D (Rhizopus oryzae) concentrate, purchased from Amano Enzyme Co., Ltd., Japan; or an immobilized lipase concentrate of Lipozyme RM IM or NS40086 (Rhizomucor miehei, NS40086 batch number PKG211117-02), or Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045) produced by Novozymes, or any mixture thereof.

[0134] The method further includes a molecular distillation step, which is performed before or after the transesterification step.

[0135] The method further includes a fractionation step, which is performed after step (1), preferably before and / or after step (3), and more preferably before step (3).

[0136] The fractionation step includes solvent fractionation and / or dry fractionation, with solvent fractionation being preferred.

[0137] According to the preparation method of the present invention, the solvent in the solvent fractionation is selected from at least one of acetone, cyclohexane, and petroleum ether, preferably acetone.

[0138] The amount of enzyme added is 3-15 wt% of the total reaction mixture, the reaction temperature is 40-80℃, and the reaction time is 0.5-6 h.

[0139] Enzymatic transesterification reactions can be carried out in batch or continuous processes.

[0140] Extremely hydrogenated oils are obtained by hydrogenating oils.

[0141] The oil is selected from at least one of the following: soybean oil, high-oleic sunflower seed oil, sunflower seed oil, cottonseed oil, rice bran oil, tea seed oil, safflower seed oil, rapeseed oil, palm oil, corn oil, peanut oil, sesame oil, olive oil, almond oil, walnut oil, flaxseed oil, shea butter, fish oil, lard, beef tallow, mutton tallow, margarine, butter, shortening, or palm oil extract, shea butter extract, transesterification product, and transesterification product extract.

[0142] The fatty acids or their derivatives are derived from high-oleic oils.

[0143] The fatty acid derivative is selected from at least one of a straight-chain unsaturated fatty acid with 12 to 28 carbon atoms and an ester of an alcohol with 1 to 6 carbon atoms.

[0144] The fatty acid or its derivative is at least one of oleic acid, methyl oleate or ethyl oleate.

[0145] The high-oleic oil is selected from at least one of the following: high-oleic sunflower seed oil, high-oleic rapeseed oil, high-oleic palm oil, high-oleic soybean oil, high-oleic rice bran oil, high-oleic olive oil, high-oleic tea oil, and transesterification products and extracts of the above oils, extracts of oil essence, palm oil essence, and shea butter extract.

[0146] The high oleic acid oil has an oleic acid content greater than 40%, 50%, 60%, 70%, 80%, or 90%.

[0147] food The food product of the present invention contains the oil composition described in the present invention or an oil composition prepared by the method for preparing the oil composition of the present invention. The composition is 0.01 to 50 parts by weight, preferably 0.1 to 45 parts by weight, and more preferably 1 to 40 parts by weight, relative to 100 parts by weight of the total food product.

[0148] The food product contains cocoa butter and / or cocoa butter-like substances. Relative to 100 parts by weight of the total food product, it also contains 1 to 50 parts by weight of cocoa butter and / or cocoa butter-like substances.

[0149] Relative to 100 parts by weight of the total food product, it also contains 1 to 20 parts by weight of cocoa powder, 10 to 50 parts by weight of sugar, and 0.1 to 5 parts by weight of phospholipids.

[0150] The food is chocolate or a food containing chocolate.

[0151] The oil composition is used for the preparation of chocolate and / or foods containing chocolate. Example

[0152] The following embodiments further illustrate the present invention, but the scope of the invention is not limited thereto. The embodiments described in this specification are for illustrative purposes only and do not limit the scope of protection of the invention. The scope of protection of the invention is defined only by the claims, and any omissions, substitutions, or modifications made by those skilled in the art based on the disclosed embodiments will fall within the scope of protection of the invention.

[0153] The following examples use instruments and equipment conventional in the art. Experimental methods in the following examples, unless otherwise specified, are generally performed under conventional conditions or as recommended by the manufacturer. Various raw materials used in the following examples are all commercially available products unless otherwise stated. In this specification and the following examples, unless otherwise specified, "%" refers to weight percentage.

[0154] Extremely hydrogenated soybean oil (purchased from Yihai Kerry Marketing Co., Ltd., sliding melting point approximately 68°C, IV approximately 0), extremely hydrogenated low erucic acid rapeseed oil (purchased from Yihai Kerry Marketing Co., Ltd., IV approximately 0), extremely hydrogenated rapeseed oil (purchased from Yihai Kerry Marketing Co., Ltd., IV approximately 0), extremely hydrogenated high oleic sunflower oil (purchased from Yihai Kerry Marketing Co., Ltd., IV approximately 0), shea butter extract stearin fraction (Shea ST, purchased from Yihai Kerry Marketing Co., Ltd., IV approximately 35), palm oil intermediate fraction (PMF, purchased from Yihai Kerry Marketing Co., Ltd., IV approximately 33), high oleic sunflower oil (purchased from Yihai Kerry Marketing Co., Ltd.), oleic acid (purity greater than 75%, purchased from Wilmar Oils & Fats Technology (Shanghai) Co., Ltd.)

[0155] The chemical reagents, such as acetone, sodium hydroxide, citric acid, and ethyl oleate (purity greater than 98%), were all purchased from Sinopharm Chemical Reagent Co., Ltd.

[0156] The method for determining fatty acid composition is AOCS Ce 1-62, and the pretreatment method is AOCS Ce 2-66. The method for determining triglyceride composition is AOCS Ce 5-86. The method for determining solid fat content is AOCS cd 16b-93. All the above methods are performed according to AOCS standards.

[0157] The analytical methods for triglyceride isomers (POP / PPO, StOSt / StStO, POSt / PStO / StOP, etc.) were based on the methods described in the literature (Wei Tingting, Yang Hong, Yang Tiankui. Study on the analysis of structural triglyceride isomers by tandem silver ion chromatography column [J], China Oils and Fats, 2012, 37(7):79~81).

[0158] Example 1 Enzymatic transesterification 2.4 kg of highly hydrogenated soybean oil and 1.6 kg of high-oleic sunflower oil were heated and mixed at a mass ratio of 1.5:1 and placed in a 5L stainless steel jacketed reactor. 8% by weight of TL enzyme (Lipozyme TL IM (Aspergillus oryzae, Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. The crude product was collected and mixed for purification.

[0159] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0160] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 35℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 35℃ for 15min, continue to cool to 3℃, keep warm for 3h, filter to obtain the solid part.

[0161] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of bleaching clay added as a decolorizing adsorbent, under a 10 mbar vacuum, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, composition 1 was obtained.

[0162] Example 2 Enzymatic transesterification 2.0 kg of highly hydrogenated soybean oil and 2.0 kg of oleic acid were heated and mixed at a mass ratio of 1:1 and placed in a 5L stainless steel jacketed reactor. 10% of the substrate weight of TL enzyme (Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction was completed, the liquid was collected by filtering through a 200-mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. The crude product was collected and mixed for further purification.

[0163] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0164] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 3℃, keep warm for 3h, filter to obtain the solid part.

[0165] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, composition 2 was obtained.

[0166] Example 3 Take 300g of Composition 2 from Example 2 into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 50°C water bath for 15 minutes, cool to 26°C, and hold for 2 hours. Filter to remove the high-melting-point solid fraction to obtain the liquid phase. Heat the liquid phase until clear, hold at 26°C for 15 minutes, continue to cool to 3°C, and hold for 3 hours. Filter to obtain the solid fraction. Then remove the solvent using a rotary evaporator at 60°C, 80 r / min, 10 mbar vacuum, and 0.5 hours to remove the acetone. Finally, remove the solvent again at 95°C, 1 mbar vacuum, and 0.5 hours to obtain Composition 3.

[0167] Example 4 Take 300g of Composition 2 from Example 2 into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 50°C water bath for 15 minutes, cool to 22°C, and maintain the temperature for 2 hours. Filter to remove the high-melting-point solid fraction to obtain the liquid phase. Heat the liquid phase until clear, maintain the temperature at 22°C for 15 minutes, continue to cool to 5°C, and maintain the temperature for 3 hours. Filter to obtain the solid fraction. Then remove the solvent using a rotary evaporator at 60°C, 80 r / min, 10 mbar vacuum, and 0.5 hours to remove the acetone. Finally, remove the solvent again at 95°C, 1 mbar vacuum, and 0.5 hours to obtain Composition 4.

[0168] Example 5 1 kg of composition 2 from Example 2 was subjected to molecular distillation at a temperature of 230°C, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 The process involves removing fatty acids, monoglycerides, or diglycerides from a 2L conical flask. 300g of the triglyceride mixture is placed in the flask and 5 times the volume of acetone is added. The mixture is heated until clear, placed in a 50°C water bath for 15 minutes, cooled to 24°C, and held at this temperature for 2 hours. The mixture is then filtered to remove the high-melting-point solid fraction, yielding a liquid phase. This liquid phase is heated until clear, held at 24°C for 15 minutes, further cooled to 7°C, and held at this temperature for 2 hours. The solid fraction is then filtered. The solvent is removed using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 hours to remove acetone. Finally, the solvent is removed again at 95°C, 1 mbar vacuum, and 0.5 hours to obtain composition 5.

[0169] Example 6 Enzymatic transesterification 2.0 kg of highly hydrogenated low-erucic acid rapeseed oil and 2.0 kg of methyl oleate were heated and mixed at a mass ratio of 1:1 and placed in a 5L stainless steel jacketed reactor. 10% by weight of NS40086 immobilized enzyme (NS40086 (Rhizomucor miehei, NS40086 batch number PKG211117-02)) was added and reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel sieve at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. The crude product was collected and mixed for purification.

[0170] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 195℃, a rotation speed of 300 r / min, and a vacuum of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0171] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 5℃, keep warm for 3h, filter to obtain the solid part.

[0172] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a 10 mbar vacuum, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, composition 6 was obtained.

[0173] Example 7 Enzymatic transesterification 2.0 kg of highly hydrogenated high-oleic sunflower seed oil and 2.0 kg of oleic acid (containing 31.0% linoleic acid) were heated and mixed at a mass ratio of 1:1 and placed in a 5L stainless steel jacketed reactor. 10% of the substrate weight of TL enzyme (Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. The crude product was collected and mixed for purification.

[0174] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0175] Solvent extraction: Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55°C water bath for 15min, cool to 32°C, keep warm for 1h, filter to remove the high-melting-point solid fraction to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32°C for 15min, continue to cool to 9°C, keep warm for 3h, filter to obtain the solid fraction.

[0176] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a 10 mbar vacuum, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, composition 7 was obtained.

[0177] Comparative Example 1 Enzymatic transesterification 2.5 kg of highly hydrogenated low-erucic acid rapeseed oil and 1.25 kg of oleic acid were heated and mixed at a mass ratio of 2:1 and placed in a 5L stainless steel jacketed reactor. 8% by weight of TL immobilized enzyme (Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for further use. The crude product was collected and mixed for purification.

[0178] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 215℃, a rotation speed of 300 r / min, and a vacuum of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0179] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 40℃, keep warm for 1h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 40℃ for 15min, continue to cool to 5℃, keep warm for 3h, filter to obtain the solid part.

[0180] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 1 was obtained.

[0181] Comparative Example 2 Chemical transesterification Weigh 1.35 kg of SheaST and 0.15 kg of PMF (mass ratio 90:10) into a 2 L Erlenmeyer flask. Heat to 105 °C under a vacuum of 10–15 mbar for 0.5 h of dehydration. Then add 0.2% sodium methoxide and react for another 0.5 h. Finally, add 1.8 times the volume of sodium methoxide to prepare a 20% citric acid solution to terminate the reaction and continue stirring for 5 min. After the reaction is complete, wash with hot water until the released wash water is neutral. Then, dehydrate thoroughly for 1 h at 105 °C under a vacuum of 10–15 mbar. The refined product obtained after processing according to the above decolorization and deodorization process is Comparative Example 2.

[0182] Comparative Example 3 Chemical transesterification Weigh 0.9 kg of SheaST and 0.6 kg of PMF (mass ratio 60:40) into a 2 L Erlenmeyer flask, heat to 105 °C, and dehydrate under a vacuum of 10–15 mbar for 0.5 h. Then add 0.2% sodium methoxide and react for 0.5 h. Finally, add 1.8 times the amount of sodium methoxide to prepare a 20% citric acid solution to terminate the reaction and continue stirring for 5 min. After the reaction is complete, wash with hot water until the released wash water is neutral. Then dehydrate thoroughly for 1 h at 105 °C and a vacuum of 10–15 mbar. The refined product obtained after processing according to the above decolorization and deodorization process is Comparative Example 3.

[0183] Comparative Example 4 Enzymatic transesterification 1.2 kg of highly hydrogenated low-erucic acid rapeseed oil and 1.8 kg of oleic acid were heated and mixed at a mass ratio of 1:1.5 and placed in a 5L stainless steel jacketed reactor. 10% of the substrate weight of TL enzyme (Lipozyme TL IM (Aspergillus oryzae, Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. 0.5% of the substrate weight of water was added for each reaction, and the crude reaction product was collected and mixed for purification.

[0184] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 185℃, a rotation speed of 300 r / min, and a vacuum of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0185] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 1h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 5℃, keep warm for 3h, filter to obtain the solid part.

[0186] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 4 was obtained.

[0187] Comparative Example 5 Enzymatic transesterification 1.5 kg of highly hydrogenated high-oleic sunflower seed oil and 2.25 kg of oleic acid (containing 40.3% linoleic acid) were mixed at a mass ratio of 1:1.5 and heated thoroughly. The mixture was then placed in a 5L stainless steel jacketed reactor. 8% of the substrate weight of TL enzyme (Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 hours. After the reaction, the mixture was filtered through a 200-mesh stainless steel sieve at the bottom of the reactor to collect the liquid. The immobilized enzyme remained in the reactor for further use. The crude product was collected and mixed for further purification.

[0188] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0189] Solvent extraction: Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55°C water bath for 15min, cool to 32°C, keep warm for 1h, filter to remove the high-melting-point solid fraction to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32°C for 15min, continue to cool to 5°C, keep warm for 3h, filter to obtain the solid fraction.

[0190] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 5 was obtained.

[0191] Comparative Example 6 Enzymatic transesterification 1.5 kg of highly hydrogenated high-oleic sunflower seed oil and 2.7 kg of oleic acid were heated and mixed at a mass ratio of 1:1.8 and placed in a 5 L stainless steel jacketed reactor. 10% of the substrate weight of NS40086 enzyme (NS40086 (Rhizomucormiehei, NS40086 batch number PKG211117-02)) was added and reacted at 70 °C and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200 mesh stainless steel screen at the bottom of the reactor, while the immobilized enzyme remained in the reactor for continued use. The crude reaction product was collected and mixed for purification.

[0192] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0193] Solvent fractionation Weigh 300g of the purified triglyceride mixture II into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 1℃, keep warm for 3h, filter to obtain the solid part.

[0194] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 6 was obtained.

[0195] Comparative Example 7 Enzymatic transesterification A mixture of 2.0 kg of highly hydrogenated soybean oil and highly hydrogenated high-erucic acid rapeseed oil (mass ratio 85:15) was heated and mixed with 2.0 kg of oleic acid at a mass ratio of 1:1 and placed in a 5L stainless steel jacketed reactor. 8% by weight of TL enzyme (Lipozyme TL IM (Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the mixture was filtered through a 200-mesh stainless steel sieve at the bottom of the reactor to collect the liquid, while the immobilized enzyme remained in the reactor for further use. The crude product was collected and mixed for purification.

[0196] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0197] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 1℃, keep warm for 3h, filter to obtain the solid part.

[0198] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 7 was obtained.

[0199] Comparative Example 8 Enzymatic transesterification 2.0 kg of highly hydrogenated high-oleic sunflower seed oil and 2.0 kg of ethyl oleate were heated and mixed at a mass ratio of 1:1 and placed in a 5L stainless steel jacketed reactor. 8% by weight of TL enzyme (Lipozyme TL IM (Aspergillus oryzae, Thermomyces lanuginosus, batch number LA331045)) was added, and the mixture was reacted at 70℃ and 80 r / min for 3 h. After the reaction, the liquid was collected by filtering through a 200-mesh stainless steel sieve at the bottom of the reactor, while the immobilized enzyme remained in the reactor for further use. The crude product was collected and mixed for purification.

[0200] Molecular distillation purification of triglycerides The crude product from the above reaction was subjected to molecular distillation at a temperature of 210℃, a rotation speed of 300 r / min, and a vacuum degree of 1×10⁻⁶. -3 mbar removes substances such as fatty acids, monoglycerides, or diglycerides.

[0201] Solvent fractionation Weigh 300g of the purified triglyceride mixture into a 2L conical flask and add 5 times the amount of acetone. Heat until clear, place in a 55℃ water bath for 15min, cool to 32℃, keep warm for 2h, filter to remove the high melting point solid part to obtain the liquid phase; heat the liquid phase until clear, keep warm at 32℃ for 15min, continue to cool to 12℃, keep warm for 2h, filter to obtain the solid part.

[0202] Oil refining The solid fraction was first desolventized using a rotary evaporator at 60°C, 80 rpm, 10 mbar vacuum, and 0.5 h to remove acetone. Next, dehydration was performed at 90°C, 10 mbar vacuum, and 0.5 h. Finally, decolorization and deodorization were carried out using conventional methods. Decolorization was performed at 105°C with approximately 2% (by weight) of clay added as a decolorizing adsorbent, under a vacuum of 10 mbar, for 0.5 h, followed by filtration. Deodorization was performed at 230°C, 5 mbar vacuum, with nitrogen purging, for 2 h. After refining, Comparative Example 8 was obtained.

[0203] Comparative Example 9 The high trans-acid oil product 1500 (approximately 42% trans fatty acids and approximately 40% saturated fatty acids) was purchased from Nanhai Oils & Fats Industry (Chiwan) Co., Ltd.

[0204] Comparative Example 10 Purchased from ADM cocoa butter (CB) products.

[0205] Application of the oil and fat composition of the present invention in chocolate products Using any one of the oil compositions from Examples 1 to 7 and Comparative Examples 1 to 10, chocolate bars were prepared according to the conventional chocolate preparation method as described in Formulation Table 2.

[0206] Table 2 Ingredients content(%) Oil and fat compositions of any one of Examples 1-7 and Comparative Examples 1-10 36.5 sugar 38 cocoa powder 10 skim milk powder 15 Lecithin 0.5 .

[0207] According to the formula in Table 2, sugar, cocoa powder, and skim milk powder were mixed with 50% by weight of any one of the fat compositions from Examples 1-7 and Comparative Examples 1-10. The mixture was then ground in a ball mill for 15 minutes. The remaining fat composition and lecithin were then added, and the mixture was ground and mixed for another 15 minutes. After discharge, the mixture was poured into molds at a temperature of 45°C without tempering. The molded mixture was then cooled at 5°C for 15 minutes, demolded, cooled, and stored to obtain chocolate bars.

[0208] After stabilizing the chocolate bars at 20°C for 2 days, heat resistance and bloom resistance tests were conducted. The results are shown in Tables 3-1 and 3-2. In Tables 3-1 and 3-2, heat resistance is expressed as the peak value of the rheometer (using a plunger with a diameter of 3 mm). Bloom resistance was assessed by sensory evaluation of the chocolate bars after alternating placement at 20°C and 30°C (per temperature / day) for a specified number of days.

[0209] 3-1 .

[0210] Table 3-2 Anti-blooming performance evaluation: "-" indicates good; "*" indicates that the luster has disappeared; "**" indicates frost; "***" indicates severe frost. Oral solubility evaluation: "++" indicates that it melts well in the mouth without a waxy feel; "+" indicates that it melts well in the air and you can hardly feel any waxy texture. "-" indicates poor melting properties in the mouth, with a noticeable waxy feel.

[0211] The results above show that the fat of the present invention has a significant effect on improving the heat resistance, anti-blooming properties, and taste of chocolate.

[0212] Application of the oil composition of the present invention in chocolate coating The chocolate coating was prepared according to the formula in Table 2. Sugar, cocoa powder, and skim milk powder were mixed with 50% by weight of any one of the fat compositions from Examples 1-7 and Comparative Examples 1-10. The mixture was then ground in a ball mill for 15 minutes. The remaining fat composition and lecithin were added, and the mixture was ground and mixed for another 15 minutes. The mixture was then discharged and placed in a coating machine. Cookies were coated at 45°C. The coated cookies were then removed and allowed to stand at 20°C. The time until no chocolate adhered to the finger when the entire surface of the coating was touched was measured.

[0213] The criteria for judging solidification are as follows: "**" indicates that the time until no chocolate adheres to the fingers is less than 10 minutes; "*" indicates that the time until no chocolate adheres to the fingers is more than 10 minutes but less than 15 minutes. "-" indicates that more than 15 minutes have elapsed until no chocolate remains on any part of the fingers.

[0214] The coated cookies were prepared using the same method as the crack resistance test. They were then allowed to cure at 20°C for 24 hours to stabilize the chocolate crystals. The visual cracking of the coated cookies was evaluated according to the following criteria.

[0215] "**" indicates that the cookie is pressed down firmly with the fingers, and although it cracks, it rarely falls off the cookie. The "*" indicates that the cookie was pressed down hard with the fingers, and although it cracked multiple times, it rarely came off the cookie. "-" indicates that the cookie was pressed hard with the fingers, resulting in multiple fine cracks and a lot of the cookie falling off.

[0216] For samples that have completed the above crack resistance test, after consuming only the coated chocolate, the mouth melt properties are evaluated according to the following criteria: "**" indicates that it melts well in the mouth without leaving a waxy feeling; "*" indicates that it melts well in the air and you can hardly feel any waxy texture; "-" indicates poor melting properties in the mouth, with a noticeable waxy feel.

[0217] Glossiness is evaluated according to the following standards: "**" indicates very good; "*" indicates good; "-" indicates a dull luster.

[0218] Table 4 Performance Tests of Oils in Biscuit and Chocolate Coating Applications (Examples and Comparative Examples) .

[0219] The results above show that the oil of the present invention significantly improves the solidification of chocolate coating, enhances workability, and improves crack resistance, melt-in-your-mouth properties, and gloss.

Claims

1. An oil and fat composition containing triglycerides, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.74 to 0.99, wherein S represents saturated fatty acid residues with 12 to 30 carbon atoms (either the same or different); U represents unsaturated fatty acid residues with 16 to 30 carbon atoms (either the same or different); SSU represents a triglyceride with S at positions 1 and 2 and U at position 3; and S2U represents a triglyceride containing 2 molecules of S and 1 molecule of U. The composition, by weight ratio, satisfies a St2O / S2U ratio of 0.5 to 0.95, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents a triglyceride bound with two molecules of St and one molecule of O. The composition, by weight, satisfies that SU2 is 0-20 wt%. The composition, by weight, satisfies that UUU is less than 5 wt%. The composition, by weight, satisfies an SSU content of 30–95 wt%. By weight ratio, the composition satisfies (PStO+StPO) / S2U 0.01~0.5, where P represents palmitic acid residue, St represents stearic acid residue, and O represents oleic acid residue. PStO represents palmitic acid residue P at position 1 of the triglyceride, stearic acid residue St at position 2 of the triglyceride, and oleic acid residue O at position 3 of the triglyceride. StPO represents stearic acid residue St at position 1 of the triglyceride, palmitic acid residue P at position 2 of the triglyceride, and oleic acid residue O at position 3 of the triglyceride. The composition, by weight, satisfies the following condition: the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.05–1 wt%. By weight, the composition satisfies a St2L / S2U ratio of 0.01 to 0.30, where St represents stearic acid residues, L represents linoleic acid residues, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue. The composition also contains, by weight, greater than 0 and less than or equal to 15 wt% diglycerides. By weight, the composition satisfies that the content of SSS is greater than 0 and less than or equal to 20 wt%, where SSS represents a triglyceride with 3 bound molecules of S. The composition, by weight, satisfies an S2U content of 40–95 wt%. By weight ratio, the composition satisfies (SU2+UUU) / S2U of 0.01 to 0.

3. SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S, while UUU represents a triglyceride containing 3 molecules of U. By weight, the fatty acid composition of the composition satisfies a stearic acid / palmitic acid ratio of 4 to 40. The composition, based on its total weight, has a 25°C solid fat content of 60 wt% to 85 wt%. The composition comprises, by weight, 0.1 wt% to less than 0.3 wt% of saturated fatty acids having 20 or more carbon atoms.

2. The composition according to claim 1, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.75 to 0.

99.

3. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.8 to 0.

99.

4. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.85 to 0.

98.

5. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.9 to 0.

98.

6. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.95 to 0.

98.

7. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies an SSU / S2U ratio of 0.91 to 0.

99.

8. The composition according to claim 1 or 2, wherein the composition further comprises 5 to 15 wt% diglycerides by weight.

9. The composition according to claim 1 or 2, wherein the composition further comprises 1 to 15 wt% diglycerides by weight.

10. The composition according to claim 1 or 2, wherein the composition further comprises 5 to 12 wt% diglycerides by weight.

11. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that the content of SSS is 2 or more but less than or equal to 20 wt%, where SSS represents a triglyceride bound with 3 molecules of S.

12. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies the requirement that the content of SSS is 2 to 18 wt%, where SSS represents a triglyceride bound with 3 molecules of S.

13. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies the requirement that the content of SSS is 3 to 15 wt%, where SSS represents a triglyceride bound with 3 molecules of S.

14. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies the condition that the St2O / S2U ratio is 0.58 to 0.95, where St represents stearic acid residues; O represents oleic acid residues; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O.

15. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies a St2O / S2U ratio of 0.55 to 0.9, where St represents a stearic acid residue; O represents an oleic acid residue; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O.

16. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies a St2O / S2U ratio of 0.6 to 0.85, where St represents a stearic acid residue; O represents an oleic acid residue; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O.

17. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies a St2O / S2U ratio of 0.65 to 0.8, where St represents a stearic acid residue; O represents an oleic acid residue; and St2O represents a triglyceride bound with 2 molecules of St and 1 molecule of O.

18. The composition according to claim 1 or 2, wherein the composition satisfies an S2U of 55 to 95 wt%.

19. The composition according to claim 1 or 2, wherein the composition satisfies an S2U of 55 to 93 wt%.

20. The composition according to claim 1 or 2, wherein the composition satisfies an S2U of 65 to 92 wt%.

21. The composition according to claim 1 or 2, wherein the composition satisfies an S2U of 70 to 90 wt%.

22. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that SU2 is 2.4 to 20 wt%, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

23. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that SU2 is 1 to 18 wt%, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

24. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that SU2 is 2 to 15 wt%, where SU2 represents a triglyceride containing 2 molecules of U and 1 molecule of S.

25. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that UUU is 0.4 to 4 wt%, where UUU represents a triglyceride bound with 3 molecules of U.

26. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that UUU is 0.1 to 4 wt%, where UUU represents a triglyceride bound with 3 molecules of U.

27. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies that UUU is 0.3 to 3 wt%, where UUU represents a triglyceride bound with 3 molecules of U.

28. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies (SU2+UUU) / S2U is 0.02 to 0.3, where SU2 represents a triglyceride with 2 molecules of U and 1 molecule of S, and UUU represents a triglyceride with 3 molecules of U.

29. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies (SU2+UUU) / S2U is 0.02 to 0.25, where SU2 represents a triglyceride with 2 molecules of U and 1 molecule of S, and UUU represents a triglyceride with 3 molecules of U.

30. The composition according to claim 1 or 2, wherein the composition satisfies an SSU content of 47.7 to 95 wt%.

31. The composition according to claim 1 or 2, wherein the composition satisfies an SSU content of 35 to 90 wt%.

32. The composition according to claim 1 or 2, wherein the composition satisfies an SSU content of 40 to 85 wt%.

33. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies (PStO+StPO) / S2U 0.05~0.5, where P represents a palmitic acid residue, St represents a stearic acid residue, O represents an oleic acid residue, PStO is a triglyceride where the 1st position represents a palmitic acid residue P, the 2nd position represents a stearic acid residue St, and the 3rd position represents an oleic acid residue O, and StPO is a triglyceride where the 1st position represents a stearic acid residue St, the 2nd position represents a palmitic acid residue P, and the 3rd position represents an oleic acid residue O.

34. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies (PStO+StPO) / S2U 0.05~0.45, where P represents a palmitic acid residue, St represents a stearic acid residue, O represents an oleic acid residue, PStO is a triglyceride where the 1st position represents a palmitic acid residue P, the 2nd position represents a stearic acid residue St, and the 3rd position represents an oleic acid residue O, and StPO is a triglyceride where the 1st position represents a stearic acid residue St, the 2nd position represents a palmitic acid residue P, and the 3rd position represents an oleic acid residue O.

35. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies (PStO+StPO) / S2U 0.1~0.4, where P represents a palmitic acid residue, St represents a stearic acid residue, O represents an oleic acid residue, PStO is a triglyceride where the 1st position represents a palmitic acid residue P, the 2nd position represents a stearic acid residue St, and the 3rd position represents an oleic acid residue O, and StPO is a triglyceride where the 1st position represents a stearic acid residue St, the 2nd position represents a palmitic acid residue P, and the 3rd position represents an oleic acid residue O.

36. The composition according to claim 1 or 2, wherein the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 4 to 35.

37. The composition according to claim 1 or 2, wherein the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 7 to 35.

38. The composition according to claim 1 or 2, wherein the fatty acid composition of the composition, by weight, satisfies a stearic acid / palmitic acid ratio of 7 to 25.

39. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids in the composition satisfying the requirement of having 14 or more carbon atoms accounts for 99 wt% or more of the total fatty acids.

40. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids in the composition satisfying the requirement of having 14 or more carbon atoms accounts for 99.5 wt% or more of the total fatty acids.

41. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids in the composition satisfying the requirement of having 14 or more carbon atoms accounts for 99.9 wt% or more of the total fatty acids.

42. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies the following: the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.08 to 1 wt%.

43. The composition according to claim 1 or 2, wherein, by weight, the composition satisfies the following: the content of triglycerides having a total carbon number of 56 derived from fatty acid residues is 0.08 to 0.9 wt%.

44. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies that St2L / S2U is 0.015 to 0.30, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

45. The composition according to claim 1 or 2, wherein the composition, by weight, satisfies that St2L / S2U is 0.015 to 0.25, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

46. ​​The composition according to claim 1 or 2, wherein the composition, by weight, satisfies that St2L / S2U is 0.02 to 0.15, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

47. The composition according to any one of claims 1 to 46, wherein the composition, by weight, satisfies that St2L / S2U is 0.05 to 0.12, where St represents a stearic acid residue, L represents a linoleic acid residue, and St2L represents a triglyceride having two stearic acid residues and one linoleic acid residue.

48. The composition according to claim 1 or 2, wherein the solid fat content at 10°C is 75-90 wt% based on the total amount of the composition.

49. The composition according to claim 1 or 2, wherein the solid fat content at 10°C is 77-88 wt% based on the total amount of the composition.

50. The composition according to claim 1 or 2, wherein the solid fat content at 20°C is 68-85 wt% based on the total amount of the composition.

51. The composition according to claim 1 or 2, wherein the solid fat content at 20°C is 70-82 wt% based on the total amount of the composition.

52. The composition according to claim 1 or 2, wherein the solid fat content at 25°C is 60-80 wt% based on the total amount of the composition.

53. The composition according to claim 1 or 2, wherein the solid fat content at 25°C is 65-80 wt% based on the total amount of the composition.

54. The composition according to claim 1 or 2, wherein the solid fat content at 30°C is 30-65 wt% based on the total amount of the composition.

55. The composition according to claim 1 or 2, wherein the solid fat content at 30°C is 35-60 wt% based on the total amount of the composition.

56. The composition according to claim 1 or 2, wherein the solid fat content at 35°C is 5 to 25 wt% based on the total amount of the composition.

57. The composition according to claim 1 or 2, wherein the solid fat content at 35°C is 10-20 wt% based on the total amount of the composition.

58. The composition according to claim 1 or 2, wherein the solid fat content at 40°C is less than 10 wt% based on the total amount of the composition.

59. The composition according to claim 1 or 2, wherein the solid fat content at 40°C is less than 8 wt% based on the total amount of the composition.

60. The composition according to claim 1 or 2, wherein the solid fat content at 40°C is less than 5 wt% based on the total amount of the composition.

61. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies the condition that the amount of trans fatty acids accounts for less than 0.5 wt% of the total fatty acids.

62. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies the condition that the amount of trans fatty acids accounts for less than 0.2 wt% of the total fatty acids.

63. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids with 12 or fewer carbon atoms in the composition accounts for less than 1 wt% of the total fatty acids.

64. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids with 12 or fewer carbon atoms in the composition accounts for 0.5 wt% or less of the total fatty acids.

65. The composition according to claim 1 or 2, wherein, by weight, the amount of fatty acids in the composition having 12 or fewer carbon atoms accounts for less than 0.1 wt% of the total fatty acids.

66. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies that the sum of stearic acid and palmitic acid accounts for 50 to 80 wt% of the total fatty acids.

67. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies that the sum of stearic acid and palmitic acid accounts for 60 to 75 wt% of the total fatty acids.

68. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies that the sum of the total amount of saturated acids and monounsaturated acids accounts for more than 90 wt% of the total fatty acids.

69. The composition according to claim 1 or 2, wherein, by weight, the fatty acid composition of the composition satisfies that the sum of the total amount of saturated acids and monounsaturated acids accounts for more than 95 wt% of the total fatty acids.

70. The composition according to claim 1 or 2, wherein, by weight, the amount of saturated fatty acids with 20 or more carbon atoms in the composition accounts for 0.1 to 0.29 wt% of the total fatty acids.

71. The composition according to claim 1 or 2, wherein, by weight, the amount of saturated fatty acids having 20 or more carbon atoms in the composition accounts for 0.2 wt% to less than 0.3 wt% of the total fatty acids.

72. A method for preparing an oil and fat composition according to any one of 1 to 71, the method comprising: (1) Contacting at least one fatty acid or its derivative with at least one highly hydrogenated oil and esterifying it; (2) Purification of the product obtained in step (1) by molecular distillation; (3) The product obtained in refining step (2).

73. The preparation method according to claim 72, the method further comprising the product obtained in the fractionation step (3) and / or step (2).

74. The preparation method according to claim 73, wherein the fractionation step comprises solvent fractionation and / or dry fractionation.

75. The preparation method according to claim 74, wherein the fractionation step is a solvent fractionation step.

76. The preparation method according to claim 75, wherein the solvent in the solvent fractionation is selected from at least one of acetone, cyclohexane, and petroleum ether.

77. The preparation method according to claim 75 or 76, wherein the solvent is acetone.

78. Use of the oil composition according to any one of claims 1 to 71 for the preparation of a food, wherein the food is chocolate or a food containing chocolate.

79. The use according to claim 78, wherein, The composition is 0.01 to 50 parts by weight relative to 100 parts by weight of the total food product.

80. The use according to claim 78 or 79, wherein, The composition is 0.1 to 45 parts by weight relative to 100 parts by weight of the total food product.

81. The use according to claim 78 or 79, wherein, The composition is 1 to 40 parts by weight relative to 100 parts by weight of the total food.

82. The use according to claim 78 or 79, wherein, Relative to 100 parts by weight of the total food product, it also contains 1 to 20 parts by weight of cocoa powder, 10 to 50 parts by weight of sugar, and 0.1 to 5 parts by weight of phospholipids.

Images