Powdered oils and fats and their manufacturing methods

Abstract

To provide powdery oil and fat having high yield during spraying and drying, and also having good physical properties of powder.SOLUTION: Powdery oil and fat comprise oil and fat, emulsifier, dextrin and glycerol. In the powdery oil and fat, the mass ratio of glycerol to dextrin is 0.10 or more.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to powdered fats and oils.

Background Art

[0002] Powdered fats and oils are used as raw materials for confectionery, bread, soups, sauces, beverages, fry batters, snack vegetables, fish paste products, meat products, mixed powders, and the like. Generally, powdered fats and oils are those in which fats and oils are coated with emulsifiers such as milk proteins and excipients such as saccharides, and are obtained by stirring and homogenizing an oil-in-water emulsion obtained by mixing an aqueous phase containing milk proteins and excipients with an oil phase, and then drying and powdering the emulsion. Also, conventionally, common production methods for powdered fats and oils include a method of adsorbing fats and oils onto an excipient and powdering them, a method of pulverizing fats and oils that are solid at room temperature and powdering them, a freeze-drying method, a spray-drying method, and the like. Among these production methods, the spray-drying method is used as a method suitable for satisfying the characteristics generally required for powdered fats and oils. In this spray-drying method, a homogenized oil-in-water emulsion is supplied to the inlet of a spray dryer, hot air is blown in, and the emulsion is sprayed into the tank of the spray dryer to be dried into powdered fats and oils.

[0003] Here, glycerin is approved as a food additive and is widely used in various applications such as a softening agent for chewing gum, crystallization prevention for frozen desserts, and a moisturizing agent for dried foods and confectionery. However, since it is liquid at room temperature (around 20°C), it is desired to be in a more handleable powder form.

[0004] As a powdered preparation containing glycerin, an oil-containing composition comprising fats and oils, an oil-containing substrate, and a polyol is described (Patent Document 1).

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] However, the technology described in Patent Document 1 suffers from poor stability of the powdered oil because it uses forced emulsification without an emulsifier, and furthermore, the low amount of glycerin relative to dextrin makes it unsuitable for spray drying.

[0007] Furthermore, because glycerin is highly hygroscopic, even if spray drying were possible, the hygroscopicity of the powder after drying would increase, causing the powdered oil to adhere to the inside of the spray dryer, resulting in a decrease in yield.

[0008] This invention has been made in view of the above circumstances, and aims to provide a powdered oil that has good yield during spray drying even when it contains glycerin. [Means for solving the problem]

[0009] To solve the above problems, the powdered oil of the present invention is a powdered oil containing oil, an emulsifier, dextrin, and glycerin, characterized in that the mass ratio of glycerin to dextrin is 0.10 or more. [Effects of the Invention]

[0010] According to the present invention, it is possible to obtain a powdered oil that has a good yield during spray drying, even if it contains glycerin. [Modes for carrying out the invention]

[0011] The present invention will be described in detail below.

[0012] The powdered oil of the present invention contains oil, an emulsifier, dextrin, and glycerin.

[0013] The powdered oils and fats of the present invention can be obtained by stirring and homogenizing an oil and fat composition (oil phase) containing oils and fats and an aqueous solution (aqueous phase) containing emulsifiers and excipients to form an oil-in-water emulsion (hereinafter referred to as "slurry"), and then drying and pulverizing this slurry.

[0014] Any edible oil can be used as the oil contained in the powdered oil of the present invention. For example, one or more oils from various oils such as palm oil, palm kernel oil, coconut oil, rapeseed oil, soybean oil, cottonseed oil, sunflower oil, rice oil, safflower oil, corn oil, olive oil, sesame oil, shea butter, sal fat, cocoa butter, lard, beef tallow, milk fat, fish oil, mutton fat, and processed oils thereof (those that have undergone one or more of the following treatments: fractionation, hardening, and transesterification) may be used.

[0015] The oil content in the powdered oil of the present invention is preferably 20 to 80% by mass, more preferably 30 to 70% by mass, and even more preferably 40 to 60% by mass.

[0016] Any emulsifier can be used as the emulsifier contained in the powdered oil of the present invention. For example, glycerin fatty acid ester, glycerin organic acid fatty acid ester, polyglycerin ester (polyglycerin fatty acid ester, polyglycerin condensed ricinoleic acid ester), sorbitan fatty acid ester, sucrose fatty acid ester, propylene glycol fatty acid ester, polyoxyethylene sorbitan fatty acid ester, lecithin (soy lecithin, egg yolk lecithin, sunflower lecithin), enzymatically hydrolyzed lecithin (soy lysolecithin, egg yolk lysolecithin), saponin, calcium stearoyl lactylate, sodium stearoyl lactylate, modified starch Powder (etherified carboxymethyl starch, hydroxypropyl starch, esterified phosphate starch, sodium octenyl succinate starch, acetate starch, moist heat treated starch, acid treated starch, cross-linked starch, pregelatinized starch, indigestible starch, etc.), skim milk powder, milk-derived proteins (milk constituent proteins (sodium caseinate, potassium caseinate, whey protein, whey protein concentrate (WPC), and whey protein isolate (WPI), etc.) and their enzymatic hydrolysates (milk peptides, etc.), whole milk powder, skim milk powder, Milk protein concentrate, cream powder, buttermilk powder, and total milk protein, etc.; cereal proteins (soy protein, soybean isolate, pea protein, broad bean protein, mung bean protein, kidney bean protein, lentil protein, chickpea protein, lupin bean protein, peanut protein, cowpea protein); seed proteins (proteins derived from sesame, canola, coconut, olive, sunflower, peanut, beet, cotton, almond, etc.); grain proteins (corn, buckwheat, wheat, embers, etc.). Examples include proteins derived from rice, wheat protein, rice protein, gum arabic, ghati gum, collagen, collagen peptides, gelatin, sphingolipids, plant sterols, bile powder, tomato glycolipids, and their hydrolysates. Among these, modified starch, milk-derived protein, soy-derived protein, gum arabic, and ghati gum are preferred from the viewpoint of also functioning as excipients for powdered oils and fats. Modified starch, milk-derived protein, and soy-derived protein are more preferred, and modified starch, sodium caseinate, soy protein, soy protein isolate, and pea protein are particularly preferred.As for the modified starch, octenyl succinate starch is particularly preferred from the viewpoint of having good emulsifying properties. These may be used individually or in combination of two or more types.

[0017] The emulsifier content in the powdered oil of the present invention is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and even more preferably 1.0% by mass or more, from the viewpoint of sufficiently enhancing the emulsifying properties of the slurry. The upper limit of the emulsifier content is preferably 40% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, and particularly preferably 15% by mass or less, from the viewpoint of the effect on the flavor of the powdered oil and the solubility of the powdered oil.

[0018] Regarding the emulsifier content in the powdered oil of the present invention, from the viewpoint of sufficiently improving the emulsifying properties of the slurry, the mass ratio of emulsifier to oil (emulsifier / oil) is preferably 0.002 or more, more preferably 0.010 or more, and even more preferably 0.020 or more. The upper limit of the mass ratio of emulsifier to oil is preferably 0.6 or less, more preferably 0.4 or less, even more preferably 0.2 or less, and particularly preferably 0.1 or less, from the viewpoint of the effect on the flavor of the powdered oil and the solubility of the powdered oil.

[0019] If the emulsifier contained in the powdered oil is a substance that also functions as an excipient (such as modified starch), the lower limit of its content is preferably 3% by mass or more, more preferably 5% by mass or more, and even more preferably 10% by mass or more, from the viewpoint of sufficiently improving the emulsifying properties of the slurry. The upper limit of the emulsifier content is preferably 40% by mass or less, more preferably 30% by mass or less, even more preferably 20% by mass or less, and particularly preferably 15% by mass or less, relative to the powdered oil, from the viewpoint of its effect on the flavor of the powdered oil and the solubility of the powdered oil.

[0020] When the emulsifier contained in the powdered oil and fat is a substance (such as modified starch) that also functions as an excipient, the mass ratio of the emulsifier to the oil and fat (emulsifier / oil and fat) is preferably 0.06 or more, more preferably 0.10 or more, and even more preferably 0.20 or more. The upper limit of the mass ratio of the emulsifier to the oil and fat is preferably 0.8 or less, more preferably 0.6 or less, and even more preferably 0.4 or less from the viewpoints of the influence on the flavor of the powdered oil and fat and the solubility of the powdered oil and fat.

[0021] Any dextrin can be used as the dextrin contained in the powdered oil and fat of the present invention. The dextrin is used as an excipient. For example, maltodextrin, isomaltooligosaccharide (branched maltodextrin), starch syrup, powdered starch, cyclodextrin, branched cyclodextrin, roasted dextrin, high molecular weight dextrin, resistant dextrin, glucose syrup, dextrose, etc. are exemplified. These may be used alone or in combination of two or more.

[0022] As the content of dextrin in the powdered oil and fat of the present invention, 20 to 60% by mass is preferable, 25 to 55% by mass is more preferable, and 30 to 50% by mass is even more preferable.

[0023] As the glycerin contained in the powdered oil and fat of the present invention, any glycerin for food additives can be used without particular limitation. The glycerin for food additives is based on the standards defined in the Food Additive Codex. Specifically, it is stipulated that the glycerin for food additives contains 95.0% (w / v) or more of glycerin (C3H8O3).

[0024] Glycerin is a colorless viscous liquid, odorless and sweet. It is also a liquid that can be miscible with water in any proportion, has a high boiling point of 290 °C, does not evaporate at body temperature, and has a high water retention capacity, so it is often used as a humectant in cosmetics. In addition, glycerin is approved as a food additive and may be added to foods such as castella, smoked squid, and the skins of meat buns, which are semi-finished foods with a moisture content exceeding 10%, for the purpose of maintaining the citriness and softness of these foods. The glycerin added to foods hardly evaporates even in the baking process of confectionery and bread described later. Therefore, citriness can be imparted to the baked confectionery and bread.

[0025] Regarding the content of glycerin in the powdery oil and fat of the present invention, from the viewpoint of containing a large amount of glycerin in the powdery oil and fat, 1% by mass or more is preferable, 3% by mass or more is more preferable, 4% by mass or more is still more preferable, and 5% by mass or more is particularly preferable. Regarding the upper limit value of the content of glycerin in the powdery oil and fat, from the viewpoint of improving the yield during spray drying and obtaining good median diameter and standard deviation of oil droplets during redissolution, 30% by mass or less is preferable, 20% by mass or less is more preferable, 15% by mass or less is still more preferable, and 12% by mass or less is particularly preferable.

[0026] The content of glycerin in the powdery oil and fat can be measured by the following method. Take the powdery oil and fat, perform silylation treatment, and then measure it with GC / FID (Shimadzu GC-2025) under the following conditions. Column: DB-1HT (Agilent Technologies) Temperature rising condition: 80 °C, 10 min → 5 °C / min → 360 °C, 13 min

[0027] The powdered oil of the present invention is characterized in that the mass ratio of glycerin to dextrin (glycerin / dextrin) is 0.10 or higher. If the mass ratio of glycerin to dextrin is within this range, the viscosity of the slurry can be adjusted to a range suitable for spray drying. From the viewpoint of improving the yield during spray drying, the mass ratio of glycerin to dextrin is preferably 0.12 or higher, and more preferably 0.14 or higher. From the viewpoint of improving the yield during spray drying, the upper limit of the mass ratio of glycerin to dextrin is preferably 1.00 or lower, more preferably 0.70 or lower, even more preferably 0.50 or lower, particularly preferably 0.35 or lower, and especially preferably 0.25 or lower.

[0028] The DE of the dextrin contained in the powdered oil of the present invention is preferably 20 or less, more preferably 14 or less, and even more preferably 9 or less, from the viewpoint of improving the yield during spray drying. DE (Dextrose Equivalent) is an indicator of the chain length of glucose residues, which are the constituent units of dextrin, and is a value that indicates the content (%) of reducing sugars in the dextrin. The larger the value, the shorter the chain length of the dextrin. The DE value can be measured by the Willstetter-Schudel method. When two or more types of dextrin are used, the total DE should be 20 or less.

[0029] The powdered oil of the present invention preferably has a mass ratio of glycerin to oil (glycerin / oil) of 0.05 to 1.00. From the viewpoint of improving the yield during spray drying, the upper limit of the mass ratio of glycerin to oil is preferably 0.80 or less, more preferably 0.50 or less, even more preferably 0.30 or less, particularly preferably 0.25 or less, even more preferably 0.20 or less, and even more preferably 0.15 or less.

[0030] Examples of foods and beverages containing the powdered oil of the present invention include breads such as white bread, dinner rolls, sweet buns, prepared breads, French bread, rye bread, whole wheat bread, Danish pastries, croissants, stollen, panettone, kugelhopf, brioche, and pizza; confectionery such as sponge cakes, butter cakes, pound cakes, pancakes, donuts, biscuits, cookies, busse, waffles, pies, and snacks; takoyaki, okonomiyaki, frozen foods, soups, sauces, beverages, fried batter, snack foods, processed seafood products, meat products, mixed flours, enteral nutritional supplements, jellies, and yogurts.

[0031] Furthermore, the powdered oil of the present invention may contain various materials other than dextrin and glycerin, such as carbohydrates, insoluble dietary fiber, milk and dairy products, pH adjusters, flavors, coloring agents, and antioxidants.

[0032] Other carbohydrates besides dextrin and glycerin include monosaccharides (glucose, fructose, galactose, mannose, etc.), disaccharides (lactose, sucrose, maltose, trehalose, etc.); oligosaccharides such as isomaltoligosaccharides (isomaltose, isomalttriose, panose), fructooligosaccharides, galactooligosaccharides (4'-galactosyllactose), xylooligosaccharides, beet oligosaccharides (raffinose), soybean oligosaccharides (raffinose, stachyose), and lactulose oligosaccharides (lactosucrose); inulins (inulin, inulin hydrolysate, agave inulin), thickening polysaccharides (LM pectin, HM pectin, pullulan, guar gum, guar gum hydrolysate, xanthan gum, native gellan gum, deacylated gellan gum, locust bean gum, tara gum, galactomannan, Examples include polysaccharides such as glucomannan, konjac mannan, curdlan, carrageenan, karaya gum, cassia gum, tamarind seed gum, tragacanth gum, fenugreek gum, psyllium seed gum, succinoglycan, ramzang gum, alginic acid, sodium alginate, PGA (propylene glycol alginate), soybean polysaccharides, methylcellulose, carboxymethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, agar, gelatin, fucoidan, porphyran, laminaran), starch, resistant starch, isomaltulose, polydextrose, indigestible glucan, and arabinogalactan; and sugar alcohols such as erythritol, sorbitol, xylitol, maltitol, lactitol, reduced isomaltulose, and mannitol. These may be used individually or in combination of two or more.

[0033] Examples of insoluble dietary fiber include cellulose, hemicellulose, holocellulose, cellobiose, matrix polysaccharides, wheat bran, fruit fibers such as apple fiber, grain fibers such as sweet potato fiber, lignin, N-acetylglucosamine, chitin, chitosan, and resistant starch. These may be used individually or in combination of two or more.

[0034] Examples of dairy products include milk. Examples of dairy products include skim milk, fresh cream, cheese (natural cheese, processed cheese, etc.), fermented milk, concentrated milk, skimmed concentrated milk, unsweetened condensed milk, sweetened condensed milk, unsweetened skimmed condensed milk, sweetened skimmed condensed milk, and whey cheese (WC). These may be used individually or in combination of two or more. <Method for producing powdered oils and fats>

[0035] An example of the method for producing powdered oils and fats according to the present invention is described below. The method for producing powdered oils and fats according to the present invention comprises a first step of obtaining a slurry (oil-in-water emulsion) by stirring and homogenizing an oil and fat composition (oil phase) containing oils and fats and an aqueous solution (aqueous phase) containing an emulsifier, an excipient (dextrin), and glycerin, etc., and a second step of drying the slurry into a powder.

[0036] First, in the first step of obtaining the slurry, a slurry is prepared by mixing an aqueous phase containing an emulsifier, an excipient, and glycerin with an oil phase containing the oils and fats described above. Specifically, the first step includes, for example, the following emulsification step and homogenization step.

[0037] In the emulsification process, each raw material is placed in the stirring tank of the emulsifier and stirred and mixed. The mixing ratio of water to other raw materials is not particularly limited, but for example, it can be in the range of 50 to 200% by mass of water relative to 100% by mass of the total amount of raw materials other than water, including oils and fats, emulsifiers, excipients, glycerin, and other raw materials. The amounts (by mass) of oils and fats, emulsifiers, dextrin, and glycerin in the slurry are maintained even in the dried powdered oils and fats. Therefore, the content of oils and fats, emulsifiers, dextrin, and glycerin in the slurry (as a mass percentage when the entire slurry is considered as 100% by mass) is set so that the content of oils and fats, emulsifiers, dextrin, and glycerin in the powdered oils and fats is the same as described above (as a mass percentage when the entire powdered oils and fats is considered as 100% by mass).

[0038] In the emulsification process, the procedure for blending each raw material is not particularly limited, but for example, water-soluble components such as water-soluble emulsifiers and excipients can be dispersed in water at room temperature and then stirred under heating, or the water-soluble components can be dispersed in heated water, stirred and completely dissolved, and then the heated and dissolved oil phase components can be added dropwise while stirring with a stirring device such as a homomixer installed in a stirring tank to emulsify.

[0039] From the viewpoint of suitability for spray drying, the viscosity of the slurry obtained in the emulsification process is preferably 1000 mPa·s or less, and more preferably 800 mPa·s or less, at 45°C. When the viscosity is within this range, uniform droplets can be sprayed from the nozzle during spray drying. The viscosity of the oil-in-water emulsion can be measured using a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd.) or the like.

[0040] In the homogenization process, the slurry obtained in the emulsification process is supplied to a pressure homogenizer to refine the oil droplet size. For example, a commercially available pressure homogenizer is used at a rate of 10-250 kgf / cm². 2 By applying pressure of this magnitude, the oil droplets can be homogenized and their size reduced. A heat sterilization step may also be included before drying and pulverizing.

[0041] Furthermore, the median diameter in the particle size distribution of the slurry is preferably 1.5 μm or less, more preferably 1.0 μm or less, even more preferably 0.8 μm or less, and particularly preferably 0.6 μm or less.

[0042] Furthermore, the standard deviation of the particle size distribution of the slurry is preferably 0.300 or less, more preferably 0.200 or less, and even more preferably 0.150 or less. Standard deviation: A value that indicates the degree of dispersion of data. It is taken as the positive square root of the variance. The closer the data is to the mean, the smaller the value (minimum value is 0), and the wider the data is spread out from the mean, the larger the value. The particle size distribution of a slurry is measured, for example, by laser diffraction.

[0043] In the second step, which involves drying the slurry (oil-in-water emulsion) obtained in the first step into a powder, the slurry is dried using generally known methods such as spray drying, vacuum freeze-drying, or vacuum drying. Among these, spray-dried powdered oils and fats obtained by drying the slurry using the spray drying method are preferred.

[0044] When drying and pulverizing by spray drying, a homogenized emulsion is supplied to the inlet of a spray dryer using a high-pressure pump, and high-temperature hot air is blown in and sprayed from above into the tank of the spray dryer. The spray-dried powder accumulates at the bottom of the tank. As the spray dryer, for example, a spray dryer that sprays using a rotary atomizer system or a nozzle system can be used. After removing the spray-dried powder from the tank of the spray dryer, it can be transported in a vibrating fluidized bed tank or the like and cooled with cold air to produce powdered oil with a moisture content of 0.5 to 3.0% by mass.

[0045] The powdered oils and fats of the present invention are dried oil-in-water emulsions, and when added to water, they revert to their original oil-in-water emulsion state, with the oil droplets being redispersed. The median diameter of the oil droplets upon redissolution is preferably 1.5 μm or less, more preferably 1.0 μm or less, and even more preferably 0.8 μm or less.

[0046] Furthermore, the standard deviation of the particle size distribution of oil droplets during redissolution is preferably 0.500 or less, more preferably 0.400 or less, and even more preferably 0.300 or less.

[0047] The present invention relates to a method for producing powdered oils and fats, wherein the powdered oils and fats are produced by drying and pulverizing a slurry (oil-in-water emulsion) containing oils and fats, an emulsifier, dextrin, and glycerin, and the mass ratio of glycerin to dextrin in the slurry is 0.10 or higher. [Examples]

[0048] The powdered oils and fats of the present invention are not limited in any way to the following examples.

[0049] (1) Preparation of powdered oils and fats Table 1 shows the raw materials used in the production of the powdered oils. Details of each raw material are as follows. <Oils> ·rapeseed oil <Dextrin> • Dextrin 1: Matsutani Chemical Industry Co., Ltd. "Pine Index #100" (DE4) • Dextrin 2, Matsutani Chemical Industry Co., Ltd. "Pine Index #1" (DE8) • Dextrin 3, Matsutani Chemical Industry Co., Ltd. "Pine Index #2" (DE10-12) Dextrin 4 Sanei Sugar Refining Co., Ltd. "NSD300" (DE10-12) Dextrin 5, Matsutani Chemical Industry Co., Ltd. "TK-16" (DE16-19) <Glycerin> Glycerin: Miyoshi Oil & Fat Co., Ltd. "Food Additive Glycerin" <Emulsifier> • Sodium caseinate, Fonterra Japan Co., Ltd. "SODIUM CASEINATE 180" • Sodium starch octenyl succinate, Ingredion Japan Co., Ltd. "Purity Gum BE"

[0050] The oils and fats listed in Table 1 were heated to 60°C to form the oil phase. To the powdered oil and fat composition listed in Table 1 (total of oil, fat, dextrin, glycerin, and emulsifier), an equal amount of water (approximately 20°C) was added, along with the dextrin, glycerin, and emulsifier listed in Table 1 (comparative example 1 used dextrin and emulsifier), and heated to 60°C to form the aqueous phase. After mixing the aqueous phase and oil phase and emulsifying, the mixture was heated at 150 kgf / cm² using a pressure homogenizer. 2 The mixture was homogenized under pressure to obtain an oil-in-water emulsion as an emulsified liquid (slurry). The obtained slurry was spray-dried at a flow rate of 25 ml / min using a nozzle-type spray dryer to obtain powdered oil with a moisture content of approximately 1% by mass (spray drying conditions: inlet temperature 160°C). In Comparative Examples 1 and 2, the viscosity of the slurry was too high to spray-dry, so the powdered oil was not evaluated. The "glycerin / dextrin" and "glycerin / oil" properties listed in Table 1 are maintained in the powdered oil after spray drying.

[0051] (2)Analysis <Median diameter and standard deviation> The slurry before spray drying was measured using a laser diffraction particle size distribution analyzer (product name "SALD-2300", manufactured by Shimadzu Corporation), and the median diameter and standard deviation were determined. <Slurry viscosity> The slurry, heated to 45°C, was measured using a Type B viscometer (manufactured by Tokyo Keiki Co., Ltd.).

[0052] (3) Evaluation

[0053] <Yield> 700g of the oil-in-water emulsion (50% solids) after the homogenization process was spray-dried, and the yield was calculated from the sample amount collected in a tote bottle as follows. A higher value indicates a better yield. For a 100% yield: 700g slurry × 50% solid content = 350g Yield (%) = Sample recovery amount (g) ÷ 350 (g) × 100

[0054] <Median diameter of oil droplets during redissolution> The median diameter of the oil droplets formed when the obtained powdered oil was redissolved in water at 25°C was measured using a laser diffraction particle size distribution analyzer (product name "SALD-2300", manufactured by Shimadzu Corporation). A smaller value indicates a better median diameter of the oil droplets upon redissolution.

[0055] <Standard deviation of oil droplets during redissolution> The standard deviation of oil droplets when the obtained powdered oil was redissolved in water at 25°C was measured using a laser diffraction particle size distribution analyzer (product name "SALD-2300", manufactured by Shimadzu Corporation). A smaller value indicates a better standard deviation of oil droplets upon redissolution.

[0056] The evaluation results are shown in Table 1.

[0057] [Table 1]

[0058] As shown in Table 1, Examples 1-13, which contained oils and fats, emulsifiers, dextrin, and glycerin, and in which the mass ratio of glycerin to dextrin was 0.10 or higher, showed good yield during spray drying.

[0059] Example 3, in which the emulsifier was modified starch, showed better yield during spray drying and better median diameter of oil droplets during redissolution compared to Example 2, in which the emulsifier was sodium caseinate.

[0060] Example 5, in which the DE of the dextrin was 14 or less, showed a better yield during spray drying compared to Example 4, in which the DE of the dextrin was greater than 14. Furthermore, Example 7, in which the DE of the dextrin was 9 or less, also showed a better yield during spray drying compared to Example 5, in which the DE of the dextrin was greater than 9.

[0061] Example 9, in which the mass ratio of glycerin to dextrin was 0.50 or less, showed better results in terms of yield during spray drying, median diameter of oil droplets during redissolution, and standard deviation compared to Example 10, in which the mass ratio of glycerin to dextrin was greater than 0.50. Furthermore, Example 7, in which the mass ratio of glycerin to dextrin was 0.25 or less, showed better results in terms of yield during spray drying, median diameter of oil droplets during redissolution, and standard deviation compared to Example 8, in which the mass ratio of glycerin to dextrin was greater than 0.25.

[0062] Example 9, in which the mass ratio of glycerin to oil was 0.25 or less, showed better results in all aspects compared to Example 10, in terms of yield during spray drying, median diameter of oil droplets during redissolution, and standard deviation, compared to Example 10, in which the mass ratio of glycerin to oil was greater than 0.25. Furthermore, Example 7, in which the mass ratio of glycerin to oil was 0.15 or less, showed better results in all aspects compared to Example 8, in terms of yield during spray drying, median diameter of oil droplets during redissolution, and standard deviation, compared to Example 8, in which the mass ratio of glycerin to oil was greater than 0.15. Similarly, Example 5, in which the mass ratio of glycerin to oil was 0.15 or less, showed better results in all aspects compared to Example 6, in terms of yield during spray drying, median diameter of oil droplets during redissolution, and standard deviation, compared to Example 6, in which the mass ratio of glycerin to oil was greater than 0.15.

[0063] On the other hand, as described above, the viscosity of the slurry was high in Comparative Examples 1 and 2, making spray drying itself difficult. As can be understood from the above explanation, the powdered oil according to the present invention had a good yield during spray drying, and the physical properties of the powder were confirmed to be good from the median diameter and standard deviation of the oil droplets upon redissolution.

Claims

1. A spray-dried powdered oil containing oils and fats, emulsifiers, dextrin and glycerin, The mass ratio of glycerin to dextrin is 0.10 or more. Spray-dried powder oil.

2. The mass ratio of glycerin to dextrin is 1.00 or less. The spray-dried powdered oil and fat according to claim 1.

3. The DE of the dextrin is 14 or less. The spray-dried powdered oil and fat according to claim 1 or 2.

4. The mass ratio of glycerin to the oil is 0.05 to 1.

00. A spray-dried powdered oil and fat according to any one of claims 1 to 3.

5. The emulsifier is one or more selected from modified starch, milk-derived protein, and soy-derived protein. A spray-dried powdered oil and fat according to any one of claims 1 to 4.

6. Contains a spray-dried powdered oil or fat as described in any one of claims 1 to 5, Food and drink.

7. The process includes obtaining a spray-dried powdered oil by pulverizing an oil-in-water emulsion by spray drying, The oil-in-water emulsion comprises oils and fats, emulsifiers, dextrin and glycerin. The mass ratio of glycerin to dextrin is 0.10 or more. A method for producing spray-dried powdered oils and fats.

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