Method for improving protein solubility of rapeseed cakes

A rapeseed cake and protein technology, applied in animal feed, animal feed, application, etc., can solve the problems of low protein solubility and difficulty in being fully utilized by animals, so as to achieve high protein solubility, realize value-added utilization, and facilitate absorption and utilization. Effect

Inactive Publication Date: 2018-03-13
COFCO NUTRITION & HEALTH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the protein solubility of rapeseed cake is low in the prior art, and the protein is difficult to be fully utilized by animals, and to provide a method for improving the protein solubility of rapeseed cake

Method used

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Effect test

Embodiment approach

[0014] According to a preferred embodiment of the present invention, in the rapeseed cake raw material, based on the total weight of the rapeseed cake raw material, the content of protein in the rapeseed cake raw material is 33-38% by weight, and the content of phytic acid is 0 -3% by weight, the content of fat is 6-15% by weight, the content of ash is 3-10% by weight, and the content of water is 0-8% by weight. The method provided by the invention effectively improves the protein solubility of the rapeseed cake without changing the content of the above components in the raw material of the rapeseed cake. The rapeseed cake raw material also contains fibers, inorganic salts, metals and other unavoidable impurities. The various components contained in the rapeseed cake raw material satisfy the sum of 100% by weight.

[0015] According to a preferred embodiment of the present invention, the particle size of the rapeseed cake raw material is not greater than 0.38mm, preferably no...

Embodiment 1

[0039] (1) Get 20g of rapeseed cake raw material (moisture content 5% by weight, particle diameter is not more than 0.25mm), pre-weighed water 14.54g, sodium hydroxide 0.497g and alkaline protease 9500U; Sodium hydroxide and alkaline protease Dissolve in pre-weighed water to form a solution, add the sodium hydroxide solution to the rapeseed cake raw material and stir evenly with a small spoon, then add the enzyme solution and stir evenly, so that the water content of the final sample is 45%, and the pH is 8.0 ±0.2;

[0040] (2) Put the treated samples in a bag and seal them, and enzymatically hydrolyze them in an incubator at 55±1°C for 48 hours, and then dry them in an oven at 60°C for 4 hours to obtain rapeseed cake S1. The measurement results of the protein solubility of the obtained rapeseed cake S1 are listed in Table 1.

Embodiment 2

[0042] (1) Get 20g of rapeseed cake raw material (moisture content 5% by weight, particle diameter is not more than 0.25mm), pre-weighed water 22.22g, sodium hydroxide 0.676g and alkaline protease 19000U; Sodium hydroxide and alkaline protease Dissolve in pre-weighed water to form a solution, add the sodium hydroxide solution to the rapeseed cake raw material and stir evenly with a spoon, then add the enzyme solution and stir evenly, so that the water content of the final sample is 55%, and the pH is 9.0 ±0.2;

[0043] (2) Put the treated sample in a bag and seal it, and enzymolyze it in an incubator at 60±1°C for 72 hours, and then dry it in an oven at 80°C for 6 hours to obtain rapeseed cake S2. The measurement results of the protein solubility of the obtained rapeseed cake S2 ​​are listed in Table 1.

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Abstract

The invention relates to the technical field of feed processing, and discloses a method for improving the protein solubility of rapeseed cakes; the method includes that the rapeseed cake raw materialis subjected to enzymatic hydrolysis, wherein enzymatic hydrolysis is carried out with the water content of the rapeseed cake raw material in a range of 20-60 wt%. Through the method for improving theprotein solubility of the rapeseed cakes, with the rapeseed cakes as the raw material, the product with high protein solubility can be prepared, and the rapeseed cakes are fully utilized in feed culture industries. The rapeseed cakes have high protein solubility, and are more conducive to absorption and utilization of proteins; the problem of low profits brought by excess production capacity in rapeseed processing industries is effectively solved, and the value-added utilization of the rapeseed cakes in the feed culture industries is realized.

Description

technical field [0001] The invention relates to the technical field of feed processing, in particular to a method for improving the protein solubility of rapeseed cake. Background technique [0002] my country is the largest rapeseed production and processing country, but the bulk trade of rapeseed oil is greatly affected by price fluctuations in the global bulk commodity market, and it is difficult to obtain stable operating benefits. With the rapid expansion of the rapeseed oil processing industry in recent years, the current rapeseed processing industry has serious overcapacity, and its profits are also squeezed by upstream and downstream, making it difficult to guarantee. [0003] Rapeseed cake is a by-product of rapeseed crushing. At present, my country's annual output of rapeseed cake is close to 600,000 tons. At present, rapeseed cake is generally not further processed in the industry, and it is directly traded and sold as feed raw materials and fertilizers. It is ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/37A23K10/14
CPCY02P60/87
Inventor 熊小辉张连慧刘泽龙王满意杨佳
Owner COFCO NUTRITION & HEALTH RES INST
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