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Preparation method for soybean protein peptide

A technology of soybean protein peptide and soybean protein, which is applied in the field of preparation of soybean protein peptide, can solve the problems that affect product promotion and application, poor hydrolysis degree, wide molecular weight distribution of products, etc., and achieve the purpose of maintaining activity, accelerating degradation, and improving functional properties and the effect of degree of hydrolysis

Active Publication Date: 2020-09-18
YOROYAL PHARM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the existing methods for preparing soybean protein peptides have shortcomings such as wide molecular weight distribution and poor hydrolysis degree, which affect the further promotion and application of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1, a kind of preparation method of soybean protein peptide

[0028] The preparation method of the soybean protein peptide comprises the following steps:

[0029] S1 pulverize soybean protein powder and pass through an 80-mesh sieve to obtain soybean protein powder;

[0030] S2 Add water to the soybean protein micropowder obtained in step S1, the amount of water added is 9 times the mass of the soybean protein micropowder, stir evenly, add the mixed solution, the mixed solution is composed of acetic acid and lactic acid in a mass ratio of 5:2, the mixed solution The added amount is 1% of the mass of soybean protein micropowder, stirred evenly, soaked for 1 hour, and added a protective agent, the protective agent is composed of vitamin C and D-sodium erythorbate in a mass ratio of 5:2, and the added amount of the protective agent is soybean protein 5% of the micropowder mass, carry out homogenization treatment, the homogenization speed is 3000r / min when carryi...

Embodiment 2

[0034] Embodiment 2, a kind of preparation method of soybean protein peptide

[0035] The preparation method of the soybean protein peptide comprises the following steps:

[0036] S1 pulverize soybean protein powder and pass through a 120-mesh sieve to obtain soybean protein powder;

[0037] S2 Add water to the soybean protein micropowder obtained in step S1, the amount of water added is 13 times the mass of the soybean protein micropowder, stir evenly, add the mixed solution, the mixed solution is composed of acetic acid and lactic acid in a mass ratio of 8:1, the mixed solution The added amount is 3% of the mass of soybean protein micropowder, stirred evenly, soaked for 3 hours, and added a protective agent, the protective agent is composed of vitamin C and D-sodium erythorbate in a mass ratio of 8:1, and the added amount of the protective agent is soybean protein 10% of the micropowder quality, carry out homogenization treatment, homogenization speed is 5000r / min when carr...

Embodiment 3

[0041] Embodiment 3, a kind of preparation method of soybean protein peptide

[0042] The preparation method of the soybean protein peptide comprises the following steps:

[0043] S1 pulverize soybean protein powder and pass through a 100-mesh sieve to obtain soybean protein powder;

[0044] S2 Add water to the soybean protein micropowder obtained in step S1, the amount of water added is 12 times the mass of the soybean protein micropowder, stir evenly, add the mixed solution, the mixed solution is composed of acetic acid and lactic acid in a mass ratio of 7:2, the mixed solution The added amount is 2% of the mass of soybean protein micropowder, stirred evenly, soaked for 2 hours, and added a protective agent, the protective agent is composed of vitamin C and D-sodium isoascorbate in a mass ratio of 6:1, and the added amount of the protective agent is soybean protein 7% of the micropowder quality, carry out homogenization treatment, when carrying out homogenization treatment,...

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Abstract

The invention belongs to the technical field of preparation of soybean protein peptides, and particularly relates to a preparation method for a soybean protein peptide. The preparation method of the soybean protein peptide provided by the invention comprises the steps of pulverizing soybean protein micro powder, and performing sieving; adding water to obtain soybean protein powder, performing uniform stirring, adding a mixed solution, performing uniform stirring, adding a protective agent, and performing homogenization treatment to obtain a mixed material; performing irradiation treatment on the mixed material, and performing filtering to obtain a precipitate; performing freezing treatment on the precipitate, performing thawing, drying the thawed precipitate in the shade, grinding the precipitate into fine powder, and performing sieving to obtain fine powder; adding water to the fine powder, regulating pH, rising temperature, adding mixed enzymes in three times for enzymolysis, inactivating the enzymes, cooling to 25 DEG C to obtain enzymolysis liquid, filtering the enzymolysis liquid, and concentrating and drying the filtrate to obtain the soybean protein peptide. The product obtained by the method of the invention has narrow molecular weight distribution and low molecular weight, and the method of the invention cannot damage active groups on a molecular chain of soybean protein, thus being beneficial to maintaining the physiological activity of the soybean protein peptide.

Description

technical field [0001] The invention belongs to the technical field of soybean protein peptide preparation, and in particular relates to a preparation method of soybean protein peptide. Background technique [0002] Soybean protein contains sufficient essential amino acids and complete components. It belongs to "high-quality protein". It is the only protein among plant proteins that can meet the requirements of essential amino acids for children aged 2 to 5 years old in accordance with the standards established by FAO / WHO / LJNU in 1985. . Soybean protein peptide is a hydrolyzed product of soybean protein, which contains exactly the same amino acids as soybean protein, and contains 8 kinds of essential amino acids. Except for methionine, which is a limiting amino acid, other amino acids exceed or approach the recommended standards of WHO. However, the human body's absorption rate and absorption rate of soybean protein peptides are higher than those of soybean protein. After ...

Claims

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Application Information

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IPC IPC(8): A23J1/14A23J3/34
CPCA23J1/14A23J3/346
Inventor 王中振谢涛刘家生
Owner YOROYAL PHARM TECH CO LTD
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