Method for biologically improving oilseed residue

A technology of oil cakes and cakes, which is applied in the field of feed processing and microbial fermentation, can solve the problems of high loss of nutrients and dry matter, strict requirements on the fermentation environment, complex processing technology, etc., to achieve stable product quality and reduce equipment The effect of simple input and fermentation process

Inactive Publication Date: 2010-07-14
INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The current methods include pit burial method, neutralization fermentation method, steam heating method, soaking method, microwave treatment method, chemical additive method, etc., but these methods have disadvantages such as high loss of nutrients and dry matter, complicated process, etc.
[0005] The patent application number is 200910061251.X. The invention patent combines physical pretreatment (high temperature

Method used

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  • Method for biologically improving oilseed residue
  • Method for biologically improving oilseed residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get rapeseed cake as main ingredient; Bacillus subtilis is passed through expansion cultivation, makes seed liquid, joins tap water by the inoculation amount of 1% of rapeseed cake weight, and the weight ratio of water and rapeseed cake is 2: 3. Based on the weight of the rapeseed cake, add 0.05% Aspergillus niger fermented product, 0.01% compound enzyme preparation, 0.15% nutrient, and then transfer the above mixture to a mixer to mix evenly with the rapeseed cake, The mixed base material is put into a fermentation tank at 25-35° C. for static fermentation for 72 hours, and the fermented base material is dried at 50° C. to obtain a protein feed product. The product has a strong fermented aroma. After measuring the contents of various anti-nutritional factors and nutritional components, it was found that the total content of isothiocyanate (OZT) and oxazolidinethione (ITC) was 1.92mg / g, crude The increase rate of protein content was 4.72%.

Embodiment 2

[0029] Rapeseed cake is taken as the main ingredient; Bacillus subtilis, Bacillus natto, and Saccharomyces cerevisiae are expanded and cultivated to make seed liquid, and the inoculation ratio of 1:1:1 by weight is 0.5% by weight of rapeseed cake. The amount of inoculum added to tap water, the weight ratio of water and rapeseed cake is 2:3, and based on the weight of rapeseed cake, add 0.05% Aspergillus niger fermentation product, 0.05% cellulase, 0.2% Nutrients, and then transfer the above mixture to a mixer to mix evenly with rapeseed cake, and put the mixed base material into a fermentation tank at 25-35°C for 72 hours of static fermentation. The fermented base material is dried at 50° C. to obtain a protein feed product. The product has a strong fermented aroma. After measuring the content of its various anti-nutritional factors and nutritional components, it was found that the total content of isothiocyanate (OZT) and oxazolidinethione (ITC) was 1.57 mg / g, and the increa...

Embodiment 3

[0031] Take dehulled cold-pressed rapeseed meal as the main material; Bacillus subtilis, Bacillus natto, Saccharomyces cerevisiae, and lactic acid bacteria are expanded and cultivated to make seed liquids respectively, and the weight ratio is 1:1:1:1. The inoculation amount of 1% of rapeseed meal weight is added to tap water, the weight ratio of water and dehulled cold-pressed rapeseed meal is 2: 3, and based on the weight of dehulled cold-pressed rapeseed meal, add 0.05% Aspergillus niger fermentation product, 0.01% plant Acid enzyme, 0.2% nutrient, and then the above mixture is transferred to a mixer and mixed evenly with dehulled cold-pressed rapeseed meal, and the mixed base material is put into a fermentation tank at 35-45 ° C for 72 hours of static fermentation. The fermented base material is dried at 50° C. to obtain a protein feed product. The product has a strong fermented aroma. After measuring the content of its various anti-nutritional factors and nutritional comp...

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Abstract

The invention relates to a method for biologically improving oilseed residue, which adopts the oilseed residue as main material. The method has the following characteristics that: in the form of single bacterium or compound, a selected bacterial strain which can efficiently degrade anti-nutritional factors is produced into seed liquid, which is dissolved in water according to a total inoculation amount accounting for 0.01 percent to 5 percent of the weight of the oilseed residue, the weight ratio of the water to the oilseed residue is 2:3 to 3:2, fermentation adjunct is added, the weight of the fermentation adjunct is 0.01 percent to 10 percent of the weight of the oilseed residue, nutritive additive is added, the weight of the nutritive additive is 0 percent to 10 percent of the weight of the oilseed residue, the oilseed residue is then added, the uniformly mixed base material is transferred into a fermenting tank, and is kept still to ferment under the temperature of 5 DEG C to 45 DEG C for 24 to 96 hours, and after fermentation, the base material is dried and dehydrated. The fermentation adjunct used in the process of fermentation can promote the degradation of the anti-nutritional factors and reduce the inoculation quantity of the bacterial strain, the production cost is reduced, the technique is simple and convenient, and thereby the equipment investment is reduced, which is favorable for popularization and application.

Description

technical field [0001] The invention belongs to the technical field of feed processing and microbial fermentation, and specifically relates to a method for preparing protein feed by using microbial solid-state fermentation and the like to reduce antinutrient substances in oil cake, which is used to improve the utilization rate of oil cake as feed. Background technique [0002] my country is the largest producer of feed in the world, and the total output of various feeds has exceeded 100 million tons. With the rapid development of the breeding industry and the feed industry, my country's feed protein resources are seriously insufficient, and a large amount of feed protein raw materials such as soybean meal, fish meal, and plasma protein must be imported from abroad every year. On the other hand, a large amount of oilseed cakes except soybean meal cannot be used rationally. Therefore, improving the utilization rate of oilseed cake has become an effective way to solve the shor...

Claims

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Application Information

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IPC IPC(8): A23K1/14
Inventor 黄凤洪江木兰钮琰星黄茜万楚筠黄庆德杨湄邓乾春刘昌盛李文林郭萍梅何江周浩宇
Owner INST OF OIL CROPS RES CHINESE ACAD OF AGRI SCI
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