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Preparation method for cottonseed meal protein fodder

A technology of protein feed and cotton meal, which is applied in the field of preparation of cotton meal protein feed, can solve the problems of low content of essential amino acids such as methionine, little consideration, and poor protein quality, so as to reduce the content of free gossypol and improve the ratio of amino acids , the effect of increasing protein content

Pending Publication Date: 2017-10-10
WUHAN POLYTECHNIC UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since cottonseed meal contains some anti-nutritional factors necessary for plant survival and reproduction, such as free gossypol, oligosaccharides (α-galactoside), phytic acid and cyclopropene fatty acid, the existence of these anti-nutritional factors will Harm the healthy growth of animals. In addition, the crude protein content in cottonseed meal is high, but the protein quality is poor, and the content of essential amino acids such as methionine is low and unbalanced, which limits the application range of the feeding value of cottonseed meal protein
Existing technologies generally focus on removing or degrading free gossypol in cottonseed meal, but little consideration is given to removing other anti-nutritional factors in raw materials, and there are even more reports about the rationality of comprehensively considering the protein content and amino acid ratio of products. is rare

Method used

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  • Preparation method for cottonseed meal protein fodder
  • Preparation method for cottonseed meal protein fodder
  • Preparation method for cottonseed meal protein fodder

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preparation example Construction

[0031] Aiming at the defects of low cottonseed meal protein content in the prior art, low removal rate of other anti-nutritional factors except free gossypol, and high production cost, the present invention proposes a preparation method of cottonseed meal protein feed, such as figure 1 shown, including the following steps:

[0032] Step S1, after uniformly mixing the pulverized cottonseed meal with water, steaming to form the material to be fermented;

[0033] Optionally, step S1 includes: mixing 100 parts (parts by mass) of pulverized cottonseed meal with water and then cooking, wherein the weight-to-volume ratio of the cottonseed meal to water is 5:4 to 1:1, and the cooking temperature is The temperature is 120~122℃, and the cooking time is 15~20min.

[0034] Step S2, cooling the material to be fermented, inoculating Aspergillus niger and active dry yeast for wine, performing solid-state fermentation in advance, and then inoculating Bacillus subtilis for fermentation to for...

Embodiment 1

[0051] The preparation materials are as follows: Brevibacterium flavum strains are cultured on the above slope, shake flask culture, shake flask fermentation culture and fermenter fermentation to prepare the Brevibacterium flavum fermentation liquid, and the dry cottonseed meal is crushed, and set aside.

[0052] Preparation of materials to be fermented: Take 10kg of dry cottonseed meal, add water at a weight-to-volume ratio of 100:100, mix well, and steam at 121°C for 15 minutes to form materials to be fermented;

[0053] Preparation of raw materials for solid-state fermentation: Inoculate the material to be fermented (according to the weight of cottonseed dry material) with 0.4% Aspergillus niger and 0.05% active dry yeast for wine, solid-state fermentation for 27 hours in advance, and then inoculated with 1% Bacillus subtilis and then fermented for 30 hours to form a solid state The initial material for fermentation, wherein the fermentation temperature is 30°C;

[0054] Co...

Embodiment 2

[0056] The material preparation of embodiment 2 is the same as embodiment 1.

[0057] Preparation of materials to be fermented: Take 10kg of dry cottonseed meal, add water at a weight-to-volume ratio of 100:80, mix well, and cook at 121°C for 15 minutes to form materials to be fermented;

[0058] Preparation of raw material for solid-state fermentation: inoculate the material to be fermented (according to the weight of dry material of cottonseed meal) with 0.2% Aspergillus niger and 0.2% active dry yeast for wine, solid-state fermentation for 36 hours in advance, and then inoculate with 0.5% Bacillus subtilis and then ferment for 60 hours to form a solid state The initial material for fermentation, wherein the fermentation temperature is 30°C;

[0059] Cotton meal protein feed preparation: take the initial material of solid-state fermentation (sampled according to the initial material formed after solid-state fermentation of 100 parts of dry cotton meal), add 0.5 kg of Breviba...

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Abstract

The invention discloses a preparation method for a cottonseed meal protein fodder. The preparation method for the cottonseed meal protein fodder comprises the following steps: uniformly mixing crushed cottonseed meal with water and then cooking, thereby forming a to-be-fermented material; cooling the to-be-fermented material, inoculating aspergillus niger and wine active dry yeast, performing early solid state fermentation, inoculating bacillus subtilis and then fermenting, thereby forming a solid fermented primary material; and adding the solid fermented primary material into brevibacterium flavum fermentation liquor, uniformly mixing and then standing by, thereby obtaining the cottonseed meal protein fodder. According to the invention, aspergillus niger and wine active dry yeast are inoculated to the cottonseed meal and are used for synergic fermenting, the bacillus subtilis is inoculated and fermented so as to form the solid fermented primary material, and then the brevibacterium flavum fermentation liquor is added, so that the content of free gossypol in the cottonseed is greatly reduced and the protein content in the cottonseed meal is increased.

Description

technical field [0001] The invention relates to the technical field of feed processing, in particular to a preparation method of cotton meal protein feed. Background technique [0002] Cotton meal is a by-product of cottonseed oil processing. In my country, a large amount of cottonseed meal is produced every year through cottonseed oil processing. Cotton meal is rich in crude protein, high in cellulose, rich in phosphorus and B vitamins, and is An economical and effective plant protein source with great development potential. However, since cottonseed meal contains some anti-nutritional factors necessary for plant survival and reproduction, such as free gossypol, oligosaccharides (α-galactoside), phytic acid and cyclopropene fatty acid, the existence of these anti-nutritional factors will Harm the healthy growth of animals. In addition, the crude protein content in cottonseed meal is high, but the protein quality is poor, and the content of essential amino acids such as meth...

Claims

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Application Information

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IPC IPC(8): A23K10/12A23K10/18A23K10/37
CPCA23K10/12A23K10/18A23K10/30Y02P60/87
Inventor 张剑张开诚梅运军杨明李建芬
Owner WUHAN POLYTECHNIC UNIVERSITY
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