Cooked sesame blend oil production process and cooked sesame blend oil product

Abstract

The invention relates to the technical field of sesame blend oil production, and particularly discloses a production process of cooked sesame blend oil and a cooked sesame blend oil product. The production process comprises the following steps: carrying out roll frying and grinding on sesame, adding water, lycopene and protamine, and carrying out ultrasonic treatment, stirring, standing and settling to obtain crude sesame oil; the method comprises the following steps: crushing nuts, adding edible bamboo charcoal powder, squeezing, roughly filtering, ultra-filtering, filtering with activated carbon, and finely filtering to obtain nut crude oil; and mixing the sesame crude oil, the nut crude oil and houttuyfonate, degassing and sterilizing to obtain the cooked sesame blend oil product. According to the production process, through mutual cooperation of the steps, the sesame crude oil has the characteristics of high oil yield and high unsaturated fatty acid content, and the cooked sesame blend oil product has the characteristics of low acid value and low hydrogen peroxide value, has rich fragrance and taste, is free of peculiar smell, can be directly eaten, does not cause diarrhea after being eaten for a long time, is beneficial to healthy diet, and improves the nutritional value, taste and flavor; the shelf life is prolonged, and the market competitiveness is enhanced.

Description

Technical Field

[0001] The present application relates to the technical field of sesame blended oil production, and more specifically, to a cooked sesame blended oil production process and cooked sesame blended oil products. Background Art

[0002] There are many kinds of edible oils on the market, among which sesame blended oil is popular among consumers for its unique aroma and nutritional value. Sesame blended oil is mainly made of sesame crude oil, and is obtained by blending edible oils such as peanut crude oil, walnut crude oil, and soybean crude oil. Existing sesame crude oil is generally ground, added with water, and left to settle to obtain sesame crude oil, and then sesame blended oil is obtained by blending edible oil. However, the applicant found in actual production that the oil yield and unsaturated fatty acid content of sesame crude oil are low, which affects the nutritional value and quality of sesame blended oil. Summary of the invention

[0003] In order to increase the oil yield and unsaturated fatty acid content, the present application provides a cooked sesame blended oil production process and a cooked sesame blended oil product.

[0004] In the first aspect, the present application provides a process for producing cooked sesame blended oil, which adopts the following technical solution: A production process for cooked sesame blended oil mainly comprises the following steps: S1, frying and grinding sesame seeds to obtain sesame paste; S2, adding water, lycopene and protamine to sesame paste, ultrasonically treating, and stirring to obtain a mixed oil; S3, allowing the mixed oil to settle until it is separated into a water layer, an oil layer, and a pulp layer, removing the water layer and the pulp layer, collecting the oil layer, and obtaining sesame crude oil; S4, crushing the nuts, adding edible bamboo charcoal powder to mix, squeezing, removing the squeezing residue, and obtaining nut crude oil; S5, coarsely filtering, ultrafiltering, filtering with activated carbon, and fine filtering the crude nut oil to obtain crude nut oil; S6. Mix the sesame crude oil and nut crude oil, add houttuynia cordata, mix, degas, and sterilize to obtain a cooked sesame blended oil product.

[0005] The production process of the cooked sesame blended oil of the present application, through the mutual coordination between each step, makes the oil yield of sesame crude oil>50%, the unsaturated fatty acid content>85%, and the acid value of the cooked sesame blended oil product is <0.3mgKOH / g, and the hydrogen peroxide value is <5mmol / kg. It has the characteristics of high oil yield and high unsaturated fatty acid content of sesame crude oil, and also has the characteristics of low acid value and low hydrogen peroxide value of cooked sesame blended oil products. At the same time, it also has the rich aroma and taste inherent in sesame oil, no peculiar smell, and is conducive to storage and healthy eating. The cooked sesame blended oil product of the present application, after being cooked, will not cause diarrhea after long-term consumption, and can be eaten directly, and is used for seasoning cold dishes, hot pot dipping sauce, etc., which is conducive to healthy eating, not greasy after long-term consumption, improves nutritional value, taste and flavor, prolongs shelf life, enhances market competitiveness, and meets consumer needs.

[0006] The production process of cooked sesame blended oil of the present application firstly rolls and stir-fries sesame seeds and grinds them, which helps to release aroma and nutrients and facilitates the dissolution of oil. Then water, lycopene and protamine are added to promote the dissolution of oil, reduce oxidation and deterioration, improve nutritional value, extend shelf life, and enhance oil yield and unsaturated fatty acid content. After that, sesame crude oil is directly obtained by static sedimentation to improve purity and ensure quality. First, nuts are crushed, edible bamboo charcoal powder is added, and squeezed, and the heat dissipation of edible bamboo charcoal powder is used to improve fluidity, enhance temperature control, reduce oxidation and deterioration, and enhance nutritional value. Then, coarse filtration, ultrafiltration, activated carbon filtration and fine filtration are performed to not only remove suspended particulate matter, but also improve odor and maintain inherent fragrance and taste. The sesame oil, nut oil and houttuynia cordata are then mixed, and after degassing and sterilization, a cooked sesame blended oil product is obtained. Houttuynia cordata is used to improve the degassing and sterilization effects, reduce oxidation and deterioration, ensure the taste of the cooked sesame blended oil product, enhance the nutritional value and safety of the cooked sesame blended oil product, and extend the shelf life.

[0007] Optionally, in step S2, the weight ratio of sesame paste, water, lycopene and protamine is (9000-11000):(9000-11000):(5-7):(2-4).

[0008] By adopting the above technical scheme, the weight ratio of sesame paste, water, lycopene and protamine is optimized to ensure the stability of oil dissolution in sesame and ensure the nutritional value and quality of crude sesame oil.

[0009] Optionally, in step S2, the temperature of the water is 90-98°C.

[0010] By adopting the above technical solution, the temperature of water is limited, which not only allows the raw materials to be fully mixed and increases the uniformity of dispersion, but also increases fluidity, promotes oil dissolution, and improves the oil yield.

[0011] Optionally, in step S2, the frequency of ultrasound is 15-25 kHz, the time is 20-40 min, and the stirring rate is 50-150 r / min, and the time is 20-40 min.

[0012] By adopting the above technical solution, the ultrasonic frequency and time are optimized, and the stirring rate and time are also optimized, which effectively promotes the full mixing of sesame paste, water, lycopene, and protamine, promotes the dissolution of oil, and improves the oil yield.

[0013] Optionally, in step S1, the frying temperature is 110-120°C and the time is 5-10 min.

[0014] By adopting the above technical solution, the temperature and time of frying are optimized to ensure that the sesame seeds are fully cooked, improve the aroma and taste of the original sesame oil, and ensure the stability and quality of the production of cooked sesame blended oil products.

[0015] Optionally, in step S1, the grinding fineness is 200-500 mesh.

[0016] By adopting the above technical solution, the grinding fineness is limited to ensure that the sesame has a good oil yield. In multiple embodiments, in step S1, the grinding fineness is 300 mesh, and the fineness can also be set to 200 mesh, 230 mesh, 250 mesh, 325 mesh, 400 mesh, 500 mesh as needed, but is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0017] Optionally, in step S4, the weight ratio of the nuts to the edible bamboo charcoal powder is (9-11):(0.5-1.5).

[0018] By adopting the above technical scheme, the weight ratio of nuts and edible bamboo charcoal powder is optimized, the amount of edible bamboo charcoal powder added is limited, the heat dissipation stability during the pressing process is enhanced, the oxidation deterioration during the pressing process is reduced, the acid value and hydrogen peroxide value are reduced, and the cooked sesame blended oil products show better quality and enhance market competitiveness.

[0019] Optionally, in step S4, the fineness of the crushing is 80-150 mesh.

[0020] By adopting the above technical solution, the fineness of nut crushing is limited, which is convenient for subsequent pressing and ensures that the nuts have a good oil yield. In multiple embodiments, in step S4, the fineness of crushing is 100 mesh, and the fineness can also be set to 80 mesh, 90 mesh, 115 mesh, 125 mesh, 140 mesh, 150 mesh as needed, but it is not limited to the listed values, and other values ​​not listed in the numerical range are also applicable.

[0021] Optionally, in step S4, the average particle size of the edible bamboo charcoal powder is 30-100 μm.

[0022] By adopting the above technical solution, the average particle size of the edible bamboo charcoal powder is limited, which not only reduces the impact of squeezing due to the excessive particle size of the edible bamboo charcoal powder, but also ensures the full mixing of the edible bamboo charcoal powder and nuts, ensures the uniformity of dispersion, and improves the use effect of the edible bamboo charcoal powder. In multiple implementation schemes, in step S4, the average particle size of the edible bamboo charcoal powder is 50μm, and the average particle size can also be set to 30μm, 40μm, 60μm, 70μm, 80μm, 90μm, 100μm as needed, but is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0023] Optionally, in step S6, the weight ratio of the sesame crude oil, nut crude oil and houttuynia cordata is (4000-6000):(1-3):(0.5-1.5).

[0024] By adopting the above technical scheme, the weight ratio of sesame crude oil, nut crude oil and houttuynia cordata is optimized, which not only facilitates the preparation of cooked sesame blended oil products, but also improves the taste and flavor, reduces the acid value and hydrogen peroxide value, and prolongs the shelf life.

[0025] Optionally, in step S4, the pressing temperature is 60-80°C, the pressure is 30-50 MPa, and the time is 50-70 min.

[0026] By adopting the above technical solution, the temperature, pressure and time of pressing are limited, which not only facilitates pressing, but also helps to maintain the extraction of effective ingredients and oil yield of nuts, and reduces oxidation and deterioration during the pressing process, thereby ensuring the nutritional value and quality of crude nut oil.

[0027] Optionally, in step S5, the filtration pore size of the coarse filtration is 25-35 μm; the filtration pore size of the ultrafiltration is 10-20 μm; the filtration pore size of the fine filtration is 3-10 μm; the activated carbon used in the activated carbon filtration is granular activated carbon, and the average particle size of the granular activated carbon is 0.1-3 mm.

[0028] By adopting the above technical scheme, the filter apertures of coarse filtration, ultrafiltration and fine filtration, as well as the average particle size of granular activated carbon are limited, which facilitates the removal of suspended particles in crude nut oil, improves odor, and enhances the transparency, purity, taste and quality of crude nut oil.

[0029] In multiple embodiments, in step S5, the filtration pore size of the coarse filtration is 30 μm, and the filtration pore size can also be set to 25 μm, 28 μm, 33 μm, 35 μm as needed, but it is not limited to the listed values, and other values ​​not listed in the numerical range are also applicable. In multiple embodiments, in step S5, the filtration pore size of the ultrafiltration is 15 μm, and the filtration pore size can also be set to 10 μm, 13 μm, 18 μm, 20 μm as needed, but it is not limited to the listed values, and other values ​​not listed in the numerical range are also applicable. In multiple embodiments, in step S5, the filtration pore size of the fine filtration is 5 μm, and the filtration pore size can also be set to 3 μm, 8 μm, 10 μm as needed, but it is not limited to the listed values, and other values ​​not listed in the numerical range are also applicable. In multiple embodiments, in step S5, the average particle size of the granular activated carbon is 1 mm. The average particle size can also be set to 0.1 mm, 0.5 mm, 1.5 mm, 2 mm, 2.5 mm, or 3 mm as needed, but is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0030] Optionally, in step S5, the iodine value of the granular activated carbon is 700-900 mg / g. In multiple embodiments, in step S5, the iodine value of the granular activated carbon is 800 mg / g, and the iodine value can also be set to 700 mg / g, 750 mg / g, 850 mg / g, 900 mg / g as needed, but is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0031] Optionally, in step S6, the degassing temperature is 60-80° C. and the degassing time is 1-3 min.

[0032] By adopting the above technical scheme, the temperature and time of degassing are optimized, the amount of residual gas in the cooked sesame blended oil product is reduced, and the shelf life is extended. In multiple implementation schemes, in step S6, the degassing temperature is 70°C and the time is 2 minutes. The temperature can also be set to 60°C, 65°C, 75°C, and 80°C as needed. The time can also be set to 1 minute, 1.5 minutes, 2.5 minutes, and 3 minutes as needed, but it is not limited to the listed values, and other unlisted values ​​within the numerical range are also applicable.

[0033] Optionally, in step S6, the sterilization temperature is 110-130° C. and the time is 5-15 seconds.

[0034] By adopting the above technical solution, the temperature and time of sterilization are optimized, microorganisms are effectively killed, the hygiene and safety of cooked sesame blended oil products are ensured, and the shelf life is extended. In multiple implementation schemes, in step S6, the sterilization temperature is 120°C and the time is 10s. The temperature can also be set to 110°C, 115°C, 125°C, 130°C as needed, and the time can also be set to 5s, 8s, 13s, 15s as needed, but it is not limited to the listed values, and other values ​​not listed within the numerical range are also applicable.

[0035] Optionally, the water content of the sesame seeds is ≤10wt%, and the water content of the nuts is ≤10wt%.

[0036] By adopting the above technical scheme, the moisture content of sesame and nuts is limited, the influence of moisture content on the sources of sesame and nuts is reduced, and the stability of the production of cooked sesame blended oil products is ensured.

[0037] Optionally, the oil content of the sesame is 50-60wt%, and the oil content of the nuts is 40-60wt%.

[0038] By adopting the above technical scheme, the oil content of sesame and nuts is limited, the stability of the source of sesame and nuts is guaranteed, and the quality of cooked sesame blended oil products is ensured.

[0039] Optionally, the nut is one or more of peanuts, walnuts, camellia seeds, sunflower seeds, cashews, pistachios, and pine nuts.

[0040] By adopting the technical solution, nuts are optimized, the selection of nuts is facilitated, and the selection is made according to different needs, thereby increasing the nutritional value, flavor and taste of the cooked sesame blended oil product.

[0041] In a second aspect, the present application provides a cooked sesame blended oil product, which adopts the following technical solution: A cooked sesame blended oil product is prepared by adopting the cooked sesame blended oil production process.

[0042] In summary, this application has at least the following beneficial effects: The production process of cooked sesame blended oil of the present application firstly stir-fryes and grinds sesame seeds, then adds water, lycopene and protamine, and directly obtains sesame crude oil after static sedimentation. By means of the cooperation of each step, the oil yield of sesame crude oil is greater than 50%, and the content of unsaturated fatty acids is greater than 85%. In addition, the nuts are crushed, edible bamboo charcoal powder is added, and pressed, and nut crude oil is obtained after coarse filtration, ultrafiltration, activated carbon filtration and fine filtration. Then, the sesame crude oil, nut crude oil and houttuynia cordata are mixed, and after degassing and sterilization, a cooked sesame blended oil product is obtained. By means of the cooperation of each step, the acid value of the cooked sesame blended oil product is less than 0.3mgKOH / g, and the hydrogen peroxide value is less than 5mmol / kg. It exhibits high crude sesame oil yield and high unsaturated fatty acid content, as well as low acidity and hydrogen peroxide values ​​in cooked sesame blended oil products. It also has the rich aroma and taste inherent in sesame oil, no peculiar smell, can be eaten directly, and after being cooked, it will not cause diarrhea if eaten for a long time, is beneficial to healthy eating, does not make you feel greasy after eating for a long time, improves nutritional value, taste and flavor, prolongs shelf life, and enhances market competitiveness. DETAILED DESCRIPTION

[0043] In order to make the present application easier to understand, the present application will be further described in detail below in conjunction with the examples, which are merely illustrative and are not intended to limit the scope of application of the present application. The raw materials or components used in the present application can be obtained through commercial routes or conventional methods unless otherwise specified. Example

[0044] Example 1 A production process for cooked sesame blended oil mainly comprises the following steps: S1. The sesame seeds are frying in a drum frying machine at a frying temperature of 115° C. for 8 minutes. The sesame seeds are then ground in a grinder to a fineness of 300 meshes to obtain sesame paste.

[0045] The water content of sesame is 6wt% and the oil content is 55.4wt%.

[0046] S2, taking 10 kg of sesame paste, adding 10 kg of water at a temperature of 95° C., 6 g of lycopene, and 3 g of protamine to the sesame paste at a stirring rate of 100 r / min, and ultrasonically treating the sesame paste at an ultrasonic frequency of 20 kHz for 30 min, and then stirring the sesame paste for 30 min to obtain a mixed oil.

[0047] S3. At a temperature of 40° C., the mixed oil is allowed to settle until it is separated into a water layer, an oil layer, and a pulp layer. The water layer and the pulp layer are removed, and the oil layer is collected to obtain sesame crude oil.

[0048] S4, crushing 10kg of nuts to a fineness of 100 mesh. Then, adding 1kg of edible bamboo charcoal powder at a stirring rate of 100r / min, stirring for 3min. Then, using a press, pressing at a pressing temperature of 70°C and a pressing pressure of 40MPa for 60min, and then removing the pressing residue to obtain nut crude oil.

[0049] The nuts are peanuts, the water content of the peanuts is 8wt%, the oil content is 43wt%, the average particle size of the edible bamboo charcoal powder is 50μm, and the edible bamboo charcoal powder is selected from Jiangsu Weizhirun Biotechnology Co., Ltd.

[0050] S5. The crude nut oil is subjected to coarse filtration, ultrafiltration, activated carbon filtration, and fine filtration to obtain crude nut oil.

[0051] Among them, coarse filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 30μm; ultrafiltration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 15μm; fine filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 5μm; the activated carbon used in activated carbon filtration is granular activated carbon, and the granular activated carbon is coconut shell granular activated carbon, the average particle size of the granular activated carbon is 1mm, and the iodine value is 800mg / g.

[0052] S6, take 5kg of sesame oil and 2g of nut oil. Add nut oil to sesame oil at a stirring rate of 100r / min and stir for 3min. Then add 1g of houttuynia cordata and stir for 3min. Then degas at 70℃ for 2min. Then sterilize at 120℃ for 10s. Obtain cooked sesame blended oil product.

[0053] Example 2 A production process for cooked sesame blended oil mainly comprises the following steps: S1. The sesame seeds are frying in a drum frying machine at a frying temperature of 110° C. for 10 min. The sesame seeds are then ground in a grinder to a fineness of 300 meshes to obtain sesame paste.

[0054] The water content of sesame is 6wt% and the oil content is 55.4wt%.

[0055] S2, taking 9 kg of sesame paste, adding 11 kg of water at a temperature of 90° C., 5 g of lycopene, and 4 g of protamine to the sesame paste at a stirring rate of 100 r / min, and ultrasonically treating the sesame paste at an ultrasonic frequency of 20 kHz for 20 min, and then stirring the mixture for 40 min to obtain a mixed oil.

[0056] S3. At a temperature of 40° C., the mixed oil is allowed to settle until it is separated into a water layer, an oil layer, and a pulp layer. The water layer and the pulp layer are removed, and the oil layer is collected to obtain sesame crude oil.

[0057] S4, 9 kg of nuts were crushed to a fineness of 100 mesh. Then, 0.5 kg of edible bamboo charcoal powder was added at a stirring rate of 100 r / min and stirred for 3 min. Then, a press was used to press at a pressing temperature of 80° C. and a pressing pressure of 30 MPa for 70 min, and then the pressing residue was removed to obtain nut crude oil.

[0058] The nuts are peanuts, the water content of the peanuts is 8wt%, the oil content is 43wt%, the average particle size of the edible bamboo charcoal powder is 50μm, and the edible bamboo charcoal powder is selected from Jiangsu Weizhirun Biotechnology Co., Ltd.

[0059] S5. The crude nut oil is subjected to coarse filtration, ultrafiltration, activated carbon filtration, and fine filtration to obtain crude nut oil.

[0060] Among them, coarse filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 30μm; ultrafiltration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 15μm; fine filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 5μm; the activated carbon used in activated carbon filtration is granular activated carbon, and the granular activated carbon is coconut shell granular activated carbon, the average particle size of the granular activated carbon is 1mm, and the iodine value is 800mg / g.

[0061] S6, take 4kg of sesame oil and 1g of nut oil. Add nut oil to sesame oil at a stirring rate of 100r / min and stir for 3min. Then add 1.5g of houttuynia cordata and stir for 3min. Then degas at 70℃ for 2min. Then sterilize at 120℃ for 10s. Obtain cooked sesame blended oil product.

[0062] Example 3 A production process for cooked sesame blended oil mainly comprises the following steps: S1. Using a drum frying machine, frying the sesame seeds at a frying temperature of 120° C. for 5 minutes. Then using a grinder to grind the sesame seeds to a fineness of 300 meshes to obtain sesame paste.

[0063] The water content of sesame is 6wt% and the oil content is 55.4wt%.

[0064] S2, taking 11 kg of sesame paste, adding 9 kg of water at a temperature of 98° C., 7 g of lycopene, and 3 g of protamine to the sesame paste at a stirring rate of 100 r / min, and ultrasonically treating the sesame paste at an ultrasonic frequency of 20 kHz for 40 min, and then stirring the sesame paste for 20 min to obtain a mixed oil.

[0065] S3. At a temperature of 40° C., the mixed oil is allowed to settle until it is separated into a water layer, an oil layer, and a pulp layer. The water layer and the pulp layer are removed, and the oil layer is collected to obtain sesame crude oil.

[0066] S4, crushing 11kg of nuts to a fineness of 100 mesh. Then, adding 1.5kg of edible bamboo charcoal powder at a stirring rate of 100r / min, stirring for 3min. Then, using a press, pressing at a pressing temperature of 60°C and a pressing pressure of 50MPa for 50min, and then removing the pressing residue to obtain nut crude oil.

[0067] The nuts are peanuts, the water content of the peanuts is 8wt%, the oil content is 43wt%, the average particle size of the edible bamboo charcoal powder is 50μm, and the edible bamboo charcoal powder is selected from Jiangsu Weizhirun Biotechnology Co., Ltd.

[0068] S5. The crude nut oil is subjected to coarse filtration, ultrafiltration, activated carbon filtration, and fine filtration to obtain crude nut oil.

[0069] Among them, coarse filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 30μm; ultrafiltration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 15μm; fine filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 5μm; the activated carbon used in activated carbon filtration is granular activated carbon, and the granular activated carbon is coconut shell granular activated carbon, the average particle size of the granular activated carbon is 1mm, and the iodine value is 800mg / g.

[0070] S6, take 6kg of sesame oil and 3g of nut oil. Add nut oil to sesame oil at a stirring rate of 100r / min and stir for 3min. Then add 0.5g of houttuynia cordata and stir for 3min. Then degas at 70℃ for 2min. Then sterilize at 120℃ for 10s. Obtain cooked sesame blended oil product.

[0071] Comparative Example Comparative Example 1 A process for producing cooked sesame blended oil, which differs from Example 1 in that, in step S2, lycopene and protamine are replaced with equal amounts of water.

[0072] Comparative Example 2 A process for producing cooked sesame blended oil, which differs from Example 1 in that, in step S2, an equal amount of lycopene is used to replace protamine.

[0073] Comparative Example 3 A process for producing cooked sesame blended oil, which differs from Example 1 in that, in step S2, an equal amount of protamine is used to replace lycopene.

[0074] Comparative Example 4 A production process for cooked sesame blended oil, which differs from Example 1 in that, in step S4, an equal amount of nuts is used to replace edible bamboo charcoal powder.

[0075] Comparative Example 5 A process for producing cooked sesame blended oil, which differs from Example 1 in that, in step S6, houttuynia cordata is replaced with an equal amount of sesame crude oil.

[0076] Comparative Example 6 A process for producing cooked sesame blended oil, which differs from Example 1 in that step S5 is different.

[0077] Step S5 specifically comprises coarse filtering, ultrafiltration and fine filtering of the crude nut oil to obtain crude nut oil.

[0078] Among them, coarse filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 30μm; ultrafiltration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 15μm; fine filtration adopts plate and frame filtration, and the pore size of the plate and frame filtration is 5μm.

[0079] Performance Testing (1) Sesame crude oil obtained in step S3 of Example 1-3 and Comparative Example 1-3 was respectively taken, and the following performance tests were performed on the sesame crude oil. The test results are shown in Table 1.

[0080] Among them, according to GB / T22223-2008 "Determination of total fat, saturated fat (acid) and unsaturated fat (acid) in food - Hydrolysis extraction-gas chromatography", the unsaturated fatty acid content in sesame crude oil was tested.

[0081] (2) The cooked sesame blended oil products obtained in step S6 of Examples 1-3 and Comparative Examples 1-6 were respectively taken, and the following performance tests were performed on the cooked sesame blended oil products. The test results are shown in Table 1.

[0082] Among them, according to GB / T8233-2018 "Sesame Oil", the acid value, hydrogen peroxide value and taste of cooked sesame blended oil products were tested.

[0083] Table 1 Test results Note: “ / ” means not detected.

[0084] As can be seen from Table 1, the sesame crude oil of the present application has a high oil yield and unsaturated fatty acid content, with an oil yield of 50.8-51.6% and an unsaturated fatty acid content of 85.5-86.3%, showing the characteristics of high oil yield and high unsaturated fatty acid content. Moreover, the cooked sesame blended oil product of the present application has a low acid value and hydrogen peroxide value, with an acid value of 0.23-0.28 mgKOH / g and a hydrogen peroxide value of 4.32-4.71 mmol / kg, and it has a strong aroma and flavor inherent in sesame oil, no odor, is conducive to storage and healthy eating, and meets market demand.

[0085] Example 1 is compared with Comparative Examples 1-3. In step S2 of the production process of Comparative Example 1, lycopene and protamine are not added; in step S2 of the production process of Comparative Example 2, lycopene is added; in step S2 of the production process of Comparative Example 3, protamine is added; in step S2 of the production process of Example 1, lycopene and protamine are added. It can be seen that by adding lycopene and protamine to sesame paste at the same time and utilizing the synergistic effect therebetween, the oil yield and unsaturated fatty acid content of sesame crude oil can be significantly improved, and the acid value and hydrogen peroxide value of cooked sesame blended oil products can be reduced, so that the cooked sesame blended oil products show better quality.

[0086] Example 1 is compared with Comparative Example 4. In step S4 of the production process of Comparative Example 4, edible bamboo charcoal powder is not added; in step S4 of the production process of Example 1, edible bamboo charcoal powder is added. It can be seen that adding edible bamboo charcoal powder to nuts and utilizing the heat dissipation and adsorption properties of edible bamboo charcoal powder can improve the pressing effect and reduce the acid value and hydrogen peroxide value of cooked sesame blended oil products. Further, Example 1 is compared with Comparative Example 5. In step S6 of the production process of Comparative Example 5, houttuynia cordata was not added; in step S6 of the production process of Example 1, houttuynia cordata was added. It can be seen that adding houttuynia cordata to sesame crude oil and nut crude oil can improve the degassing and sterilization effects, and make the cooked sesame blended oil products show lower acid value and hydrogen peroxide value, increase storage stability, and extend shelf life.

[0087] Example 1 and Comparative Example 6 are compared. In step S5 of the production process of Comparative Example 6, the crude nut oil is subjected to coarse filtration, ultrafiltration, and fine filtration to obtain crude nut oil; in step S5 of the production process of Example 1, the crude nut oil is subjected to coarse filtration, ultrafiltration, activated carbon filtration, and fine filtration to obtain crude nut oil. It can be seen that on the basis of coarse filtration, ultrafiltration, and fine filtration of the crude nut oil, combined with activated carbon filtration, the odor can be improved, and the inherent fragrance and taste can be maintained, thereby enhancing the market competitiveness.

[0088] It should be noted that the embodiments described above are only used to explain the present application and do not constitute any limitation to the present application. The present application is described with reference to typical embodiments, but it should be understood that the words used therein are descriptive and explanatory words, rather than restrictive words. The present application may be modified as specified within the scope of the claims of the present application, and the present invention may be revised without departing from the scope and spirit of the present application. Although the present application described therein relates to specific methods, materials and embodiments, it does not mean that the present application is limited to the specific examples disclosed therein. On the contrary, the present application can be extended to all other methods and applications with the same functions.

Claims

1. A process for producing cooked sesame blended oil, characterized in that: The main steps are as follows: S1, frying and grinding sesame seeds to obtain sesame paste; S2, adding water, lycopene and protamine to sesame paste, ultrasonically treating, and stirring to obtain a mixed oil; S3, allowing the mixed oil to settle until it is separated into a water layer, an oil layer, and a pulp layer, removing the water layer and the pulp layer, collecting the oil layer, and obtaining sesame crude oil; S4, crushing the nuts, adding edible bamboo charcoal powder to mix, squeezing, removing the squeezing residue, and obtaining nut crude oil; S5, coarsely filtering, ultrafiltering, filtering with activated carbon, and fine filtering the crude nut oil to obtain crude nut oil; S6. Mix the sesame crude oil and nut crude oil, add houttuynia cordata, mix, degas, and sterilize to obtain a cooked sesame blended oil product.

2. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S2, the weight ratio of sesame paste, water, lycopene and protamine is (9000-11000):(9000-11000):(5-7):(2-4).

3. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S2, the temperature of the water is 90-98°C.

4. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S4, the weight ratio of the nuts to the edible bamboo charcoal powder is (9-11):(0.5-1.5).

5. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S6, the weight ratio of the sesame crude oil, nut crude oil and houttuynia cordata is (4000-6000):(1-3):(0.5-1.5).

6. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S4, the pressing temperature is 60-80°C, the pressure is 30-50 MPa, and the time is 50-70 min.

7. The process for producing cooked sesame blended oil according to claim 1, characterized in that: In step S5, the filtration pore size of the coarse filtration is 25-35 μm; the filtration pore size of the ultrafiltration is 10-20 μm; the filtration pore size of the fine filtration is 3-10 μm; the activated carbon used in the activated carbon filtration is granular activated carbon, and the average particle size of the granular activated carbon is 0.1-3 mm.

8. The process for producing cooked sesame blended oil according to claim 1, characterized in that: The water content of the sesame seeds is ≤10wt%, and the water content of the nuts is ≤10wt%.

9. The process for producing cooked sesame blended oil according to claim 1, characterized in that: The nuts are one or more of peanuts, walnuts, camellia seeds, sunflower seeds, cashews, pistachios, and pine nuts.

10. A cooked sesame blended oil product, characterized in that: The cooked sesame blended oil product is prepared by using a cooked sesame blended oil production process as described in any one of claims 1 to 9.

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