Method for preparing high-purity rice protein peptide through high-pressure treatment and enzymolysis

A technology of rice protein peptide and rice protein, which is applied in the field of food technology, can solve the problems of low enzymatic hydrolysis rate and heat denaturation of rice protein, achieve the goals of wide sources, reduce peroxide, improve production performance and anti-stress ability Effect
CN103540637AInactive Publication Date: 2014-01-29ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Publication Date
2014-01-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing high-purity rice protein peptide through high-pressure treatment and enzymolysis. The method comprises the following steps: crushing and soaking rice residues, performing primary enzymolysis on the rice residues to obtain a primary rice protein, performing high-pressure treatment on the primary rice protein to obtain a secondary rice protein, performing secondary enzymolysis on the secondary rice protein to obtain a zymolyte of the rice protein, centrifuging, and performing spray drying to obtain the rice protein peptide. The adopted raw materials comprise byproducts in starch sugar production and fermentation industry and are wide in source and low in price. In the process of preparing the high-purity rice protein peptide, amylase impurity removal and high-pressure pretreatment are performed, and subsequent enzymolysis is promoted, so that the content of the finally prepared rice protein peptide is higher than 75 percent, and the content of the small peptide with molecular weight of 400-2000Da is higher than 65 percent; when the rice protein peptide is used in foods, growth and development of children are promoted, the immune function of a human body is improved, in-vivo peroxides are reduced, and senescence is delayed; when the rice protein peptide is used in animal feed, the production performance and stress resistance of animals can be improved, and the morbidity and mortality rates and sewage discharge are reduced.
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Description

technical field

[0001] The invention relates to a method for preparing high-purity rice protein peptides through high-pressure treatment and enzymolysis, and belongs to the field of food technology. Background technique

[0002] Rice protein is recognized as a high-quality vegetable protein. It has high methionine and arginine content, low allergies, and has health functions such as anti-diabetes, anti-cholesterol, and anti-cancer. It is very suitable as a nutritional food for infants and special populations. The rice protein peptide obtained by enzymatic hydrolysis of rice protein has a variety of biological activities, such as anti-oxidation, lowering blood pressure, improving immune function, accelerating protein absorption and deposition in the body, promoting growth and development, reducing waste discharge, etc., and can be widely used in in food, cosmetic and feed products.

[0003] my country's rice production accounts for one-third of the world. However, the prote...

Claims

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