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A kind of production method of soybean protein isolate with high extraction rate

A technology of soybean protein isolate and production method, which is applied in the production field of soybean protein isolate with high extraction rate, can solve the problems of unfavorable energy saving, emission reduction, consumption reduction, protein loss, and processing difficulties, so as to reduce the difficulty of sewage treatment and reduce production energy consumption , Improve the effect of protein recovery

Active Publication Date: 2020-01-24
LINYI YUWANG VEGETABLE PROTEIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Although the above-mentioned operation method is simple, only most of the 7S and 11S proteins are recovered in the production process, and the extraction rate is low, resulting in protein loss. It also causes difficulties in handling, which is not conducive to the technical defects of energy saving, emission reduction and consumption reduction

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  • A kind of production method of soybean protein isolate with high extraction rate
  • A kind of production method of soybean protein isolate with high extraction rate
  • A kind of production method of soybean protein isolate with high extraction rate

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Embodiment 1

[0027] Embodiment one: the production method of a kind of high extraction rate soybean protein isolate provided by the present invention, flow chart is as follows figure 1 As shown, it includes the following steps: (1) Extraction: Add the raw material low-temperature defatted soybean meal and water into the extraction tank for extraction to obtain the extraction solution. The extraction time and temperature should be mixed evenly. After the whole process, the recovery rate will be the highest. ; Low-temperature defatted soybean meal is the processing technology of soybean meal. The measurement index of low-temperature soybean meal used here is NSI>78, which is a common raw material in the industry;

[0028] (2) Add modified enzyme: add modified enzyme in the extraction tank described in step (1); glue ability;

[0029] (3) Enzyme modification: Stir the modified enzyme and extract in the extraction tank to make them fully mixed, and then transport them to the balance tank thro...

Embodiment 2

[0061] Embodiment 2: The production method of a kind of high extraction rate soybean protein isolate provided by the present invention, comprises the following steps, (1) leaching: raw material defatted soybean meal, water are added in the extraction tank according to the mass ratio of 1:8, adjust The pH value is 6.8, and the temperature is controlled at 37°C for extraction to obtain the extract;

[0062] (2) Add modified enzyme: add transglutaminase TG-H to the extraction tank described in step (1), when adding modified enzyme, it can be added directly, or it can be added continuously using a static mixer, and stirred until uniformly mixed , the mass of modified enzyme added, calculated with the mass of protein dry matter as a reference, the mass of added modified enzyme is 0.3‰ of the mass of protein dry matter;

[0063] (3) Enzyme modification: Stir the modified enzyme and the extract in the extraction tank for 20 minutes to make them fully mixed, and then transport them to...

Embodiment 3

[0090] Embodiment three: the production method of a kind of high extraction rate soybean protein isolate provided by the present invention, comprises the following steps, (1) leaching: raw material defatted soybean meal, water are added in the extraction tank according to the mass ratio of 1:15, adjust The pH value is 7.8, and the temperature is controlled at 45°C for extraction to obtain the extract;

[0091] (2) Add modified enzyme: add modified enzyme to the extraction tank described in step (1), the modified enzyme selected is transglutaminase TG-H, modified enzyme and water are 1 according to mass ratio: 9 dilution, and then add the transglutaminase dilution into the extraction tank, the quality of the modified enzyme added is calculated with the protein dry matter as a reference, and the added modified enzyme is 1.5‰ of the protein dry matter;

[0092] (3) Enzyme modification: Stir the modified enzyme and the extract in the extraction tank for 2.5 hours to make them full...

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Abstract

The invention discloses a high extraction rate soy isolate protein production method. The method comprises (1) extraction, (2) modified enzyme addition, (3) enzyme modification, (4) extract centrifugation after enzyme modification, (5) acid precipitation: adjusting pH of a liquid phase 2 obtained in the step (4) and then carrying out settling to obtain an acid precipitation liquid, (6) acid precipitation liquid centrifugation, (7) neutralization: adding water into the solid phase 3 obtained by the step (6) for neutralization so that a neutralized liquid is obtained, (8) drying and recovering the soy isolate protein. In the process of extracting the protein from soybeans, the extracted small molecular proteins are cross-linked to form a macromolecular protein, in the acid precipitation, the macromolecular protein can be fully precipitated and recovered so that a protein recovery rate is improved, and production energy consumption is reduced because of low protein content of the whey liquid after extraction. The method is easy to realize large-scale production and good sustainable development.

Description

technical field [0001] The invention belongs to the technical field of plant extraction, in particular to a production method of isolated soybean protein with high extraction rate. Background technique [0002] Soybean, leguminous soybean is an annual herb. It is a crop whose seeds are rich in plant protein. The protein isolated from soybean is widely used in various foods because of its excellent water retention and gel properties, especially ham sausage. , injection barbecue, various frozen prepared foods, etc.; in the prior art, the alkali-soluble acid precipitation method is used to extract protein from soybeans, and the operation method includes the following steps: in the extraction section, add a balance tank designed in series with the extraction tank, and There is also an emulsification pump between the extraction tank and the balance tank. After the material is leached in the extraction tank, it is ground and pulverized by the emulsification pump, then enters the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23J1/14A23J3/16A23J3/34
CPCA23J1/148A23J3/16A23J3/34
Inventor 刘汝萃王彩华时玉强马军鲁绪强
Owner LINYI YUWANG VEGETABLE PROTEIN
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