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Preparation technology of polypeptide feed additive containing wheat or wheat processing products

A technology for processing products and polypeptide feed, applied in animal feed, animal feed, animal husbandry, etc., to achieve strong controllability, save production costs, and expand the application field

Inactive Publication Date: 2013-04-17
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems concerning the selection of protease types, substrate concentration, enzyme addition amount, reaction temperature and time in the production technology of enzymatic hydrolysis of wheat protein to produce feed additives containing polypeptides

Method used

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  • Preparation technology of polypeptide feed additive containing wheat or wheat processing products
  • Preparation technology of polypeptide feed additive containing wheat or wheat processing products

Examples

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Embodiment 1

[0016] Example 1: Take 10 kg of wheat raw material, grind the raw material, add 80 L of deionized water, stir continuously while adding, and mechanically stir for 10 minutes at a speed of 1000 rpm, then transfer the material into the reactor without adjustment The pH of the reaction system, after the temperature rises to 45°C, add 10,000 U / g of substrate neutral protease, and react for 4 hours under these conditions. After the reaction is finished, the hydrolysis is stopped, and the enzymatic hydrolyzate product containing wheat polypeptide is obtained by centrifugal spray drying, which is added to the daily feed of suckling pigs in a ratio of 10% (weight ratio) instead of plasma protein.

Embodiment 2

[0017] Embodiment 2: Get 10kg of wheat flour, add 90L of deionized water, stir continuously while adding, and mechanically stir for 10 minutes at a rotating speed of 1000rpm, then transfer the material to the reactor without adjusting the pH of the reaction system, After the temperature rises to 50°C, add 10,000 U / g of substrate neutral protease, and react under these conditions for 3.5 hours. After the reaction is finished, the hydrolysis is stopped, and the enzymatic hydrolyzate product containing wheat polypeptide is obtained by centrifugal spray drying, which is added to the daily feed of suckling pigs at a ratio of 8% (weight ratio) instead of plasma protein.

Embodiment 3

[0018] Embodiment 3: Get 10kg of gluten powder, add 100L of deionized water, stir non-stop while adding, mechanically stir for 10 minutes at a rotating speed of 1000rpm, then transfer the material into the reactor without adjusting the pH of the reaction system , after the temperature rises to 50°C, add 10000U / g substrate neutral protease, and react under this condition for 3.5h. After the reaction is finished, the hydrolysis is stopped, and the enzymatic hydrolyzate product containing the polypeptide is obtained by centrifugal spray drying, which is added to the daily feed of suckling pigs in a ratio of 5% (weight ratio) instead of plasma protein.

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Abstract

The invention discloses a technology and a method of taking wheat or wheat processing products as materials to produce forage polypeptide by hydrolysis of protease. The technology is characterized by properly hydrolyzing wheat protein by neutral protease, obtaining a polypeptide product with high true nutritive value and a proper molecular weight distribution range by controlling the hydrolysis degree of the wheat protein, and then producing polypeptide powder by a spray drying technology. The product has the characteristics of good water-solubility, stability in emulsibility, high small molecular weight polypeptide content, high true nutritive value and the like; and the bioavailability of the wheat protein is greatly improved. An acid-base modifier does not need to be added in the technological process, the defects of high salt content of products, severe environment pollution and the like in the conventional enzymatic or acid hydrolysis process are overcome, and the reaction process is easily controlled. The product is mainly applied to the field of a feed additive for a weanling animal, and can replace spray-dried plasma protein with high production cost.

Description

technical field [0001] The invention discloses a preparation process of a polypeptide feed additive containing wheat or wheat processing products, which belongs to the field of deep processing of agricultural and sideline products. Background technique [0002] Wheat protein is a by-product of wheat starch production. Its protein content is as high as about 75%. According to its solubility characteristics, it can be divided into albumin, globulin, glutenin and gliadin. It is a pure natural plant protein source with high nutritional value, high quality and low price. With the increasing market demand for wheat starch, the output of wheat protein is also increasing year by year. However, the demand for wheat protein in traditional fields has basically reached saturation. Therefore, the application fields of wheat protein should be expanded in order to be fully utilized and create higher economic value. [0003] Due to the high nutritional value of wheat protein, it can be us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/16C12P21/06
Inventor 钱海峰谷中华张晖齐希光王立
Owner JIANGNAN UNIV
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