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Preparation method of wheat hydrolyzed proteins

A wheat hydrolyzed protein and a wheat protein technology are applied in the preparation field of wheat hydrolyzed protein, which can solve the problems of poor taste of hydrolyzed products, difficult separation of products, incomplete hydrolysis and the like, and achieve a product with good palatability, low production cost and no environmental pollution. Effect

Inactive Publication Date: 2017-03-22
TRUSYN CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: In view of the problems of incomplete hydrolysis, poor taste of the hydrolyzed product, difficult separation of the product and high cost in the current enzymatic preparation process of wheat hydrolyzed protein, the present invention uses wheat protein as raw material and processes it with hydrogen peroxide. Oxidation treatment, and then modify it with hydrochloric acid, acetic anhydride, etc. to increase protein solubility and improve the spatial structure, and then through the joint action of microorganisms and enzymes, the protein is hydrolyzed to increase the hydrolysis speed, and finally the impurities are removed by centrifugation and decolorization , inactivating enzymes and other processes to produce wheat hydrolyzed protein

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] According to the solid-liquid mass ratio of 1:3, take wheat protein and hydrogen peroxide with a mass fraction of 5% and put them into a three-necked flask with a stirrer and a thermometer, then place the three-necked flask in a water bath, set the temperature at 60°C, Stir at 130r / min for 30min, then put the mixture in the three-necked flask into a ball mill, add steel balls into the ball mill according to the ball-to-material ratio of 10:1, and activate the ball mill for 30min; In terms of parts, take 45 parts of ball milling mixture, 22 parts of 1.8mol / L hydrochloric acid, 15 parts of acetic anhydride and 4 parts of ammonium persulfate, put them into a high-pressure reactor, use nitrogen protection, and increase the pressure to 2MPa, set the temperature as 78°C, stirring and reacting at 160r / min for 4h; after the above reaction is completed, cool naturally to room temperature, then reduce the pressure to standard atmospheric pressure, and discharge the material, filte...

example 2

[0021] According to the solid-liquid mass ratio of 1:3, take wheat protein and hydrogen peroxide with a mass fraction of 5% and put them into a three-necked flask with a stirrer and a thermometer, then place the three-necked flask in a water bath, set the temperature at 70°C, Stir at 130r / min for 40min, then put the mixture in the three-neck flask into a ball mill, add steel balls into the ball mill according to the ball-to-material ratio of 10:1, and activate the ball mill for 40min; In terms of parts, take 50 parts of ball milling mixture, 19 parts of 1.8mol / L hydrochloric acid, 10 parts of acetic anhydride and 2 parts of ammonium persulfate, put them into a high-pressure reactor, use nitrogen protection, and increase the pressure to 4MPa, set the temperature as 83°C, stirring and reacting at 160r / min for 7h; after the above reaction is completed, naturally cool to room temperature, then reduce the pressure to standard atmospheric pressure, and discharge the discharge, filter...

example 3

[0024]According to the solid-liquid mass ratio of 1:3, take wheat protein and hydrogen peroxide with a mass fraction of 5% and put them into a three-necked flask with a stirrer and a thermometer, then place the three-necked flask in a water bath, set the temperature at 65°C, Stir at 130r / min for 35min, then put the mixture in the three-necked flask into a ball mill, add steel balls into the ball mill according to the ball-to-material ratio of 10:1, and activate the ball mill for 35min; In terms of parts, take 48 parts of ball milling mixture, 20 parts of 1.8mol / L hydrochloric acid, 12 parts of acetic anhydride and 3 parts of ammonium persulfate, put them into a high-pressure reactor, use nitrogen protection, and increase the pressure to 3MPa, set the temperature as 80°C, stirring and reacting at 160r / min for 5h; after the above reaction is completed, cool naturally to room temperature, then depressurize to standard atmospheric pressure, discharge the material, filter the discha...

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Abstract

The present invention relates to a preparation method of wheat hydrolyzed proteins and belongs to the technical field of deep processing of wheat. The preparation method aims at the problems that during enzymolysis preparation process of the wheat hydrolyzed proteins, the hydrolysis is not complete, the hydrolyzate is poor in mouthfeel, the products are difficult to separate, and the cost is high. Wheat proteins are used as raw materials, hydrogen peroxide is used to conduct oxidation treatment on the wheat proteins, then hydrochloric acid, acetic anhydride, etc. are added to conduct modification, the protein solubility is increased, the spatial structure is improved, then through the interaction of micro-organisms and enzymes, the proteins are subjected to hydrolysis, the hydrolysis rate is improved, and finally the wheat hydrolyzed proteins is prepared by centrifugal impurity removal, decolorization, enzyme deactivation, etc. The prepared wheat hydrolyzed proteins have a hydrolysis degree of 22% or more and a solubility of 78% or more, the production cost is low and the environment is not polluted.

Description

technical field [0001] The invention relates to a preparation method of wheat hydrolyzed protein, which belongs to the technical field of wheat deep processing. Background technique [0002] Wheat protein, also known as active gluten flour, commonly known as gluten, is a by-product extracted from wheat starch processing and is a powdery natural high-protein polymer. With the increase of wheat starch production, the demand for wheat protein in the traditional market tends to be saturated, so it is imperative to develop new uses of wheat protein. [0003] Wheat flour generally contains 9-14% protein, often as a by-product of wheat starch processing, is a natural high-quality plant protein, contains a large amount of glutamic acid and proline, of which glutamic acid mainly exists in the form of amide bonds , accounts for 1 / 3 of the total amino acids, and proline accounts for 1 / 7 of the total amino acids. According to the solubility characteristics of wheat protein, wheat prot...

Claims

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Application Information

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IPC IPC(8): A23J3/18A23J3/32A23J3/34
CPCA23J3/18A23J3/32A23J3/346
Inventor 吴蓉蓉邹玉
Owner TRUSYN CHEM TECH
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