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Method for preparing microbial cultures through solid state fermentation of bean dregs

A microbial culture and solid-state fermentation technology, applied in the field of feed, can solve problems such as environmental pollution and high production costs, and achieve the effects of reducing production costs, reducing pollution, and eliminating drying links

Pending Publication Date: 2019-01-15
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing method of developing and utilizing bean dregs resources is mainly to dry and crush the bean dregs, prepare the mixture and then sterilize it. At the same time, it must be fermented within a certain temperature range, and it must be dried after fermentation. For example: Chinese patent application number CN103156051 A "A Method for Making Protein Feed Using Compound Bacteria to Ferment Bean Dregs" and Chinese Patent Application No. CN103583795 A "A Microbial Fermented Bean Dregs Feed" discloses a method for preparing protein feed using bean dregs, but the production cost is high in the existing methods , and finally need to be aired or dried, which will pollute the environment

Method used

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  • Method for preparing microbial cultures through solid state fermentation of bean dregs
  • Method for preparing microbial cultures through solid state fermentation of bean dregs
  • Method for preparing microbial cultures through solid state fermentation of bean dregs

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Embodiment 1: Prepare the soybean dregs solid-state fermented feed material of the present embodiment according to the following method:

[0023] (1) Bean dregs steam explosion sterilization treatment: put the bean dregs into the steam explosion tank, feed 2.1Mpa steam into the steam explosion tank, keep for 2.5min, open the steam explosion valve, and obtain the bean dregs after the steam explosion;

[0024] (2) Dehydration: the tea leaves after steam explosion are extruded or dried by equipment, so that the moisture content is controlled at 55% by mass fraction;

[0025] (3) Preparation of fermentation substrate: 71.97 parts by weight of dehydrated bean dregs, 8 parts by weight of bran, 10 parts by weight of lysine residue, 10 parts by weight of molasses, and 0.03 parts by weight of compound trace elements are fully mixed to make a fermentation substrate; Said compound trace element is made up of 2 parts by weight FeS0 4 ·7H 2 0, 0.9 parts by weight MnS0 4 , 0.8 par...

Embodiment 2

[0032] Embodiment 2: Prepare the soybean dregs solid-state fermented feed material of the present embodiment according to the following method:

[0033] (1) Bean dregs steam explosion sterilization treatment: put the bean dregs into the steam explosion tank, feed 2.5Mpa steam into the steam explosion tank, keep for 3min, open the steam explosion valve, and obtain the bean dregs after steam explosion;

[0034] (2) Dehydration: the bean dregs after steam explosion are extruded or dried by equipment, so that the moisture content is controlled at 50%;

[0035] (3) Fermentation substrate preparation: 68.96 parts by weight of dehydrated bean dregs, 10 parts by weight of bran, 10 parts by weight of glutamic acid residue, 11 parts by weight of molasses, and 0.04 parts by weight of compound trace elements are fully mixed to make a fermentation substrate; Composite trace element consists of 3 parts by weight FeS0 4 ·7H 2 0,1 parts by weight MnS0 4 , 0.9 parts by weight ZnS0 4 , 1.1 ...

Embodiment 3

[0042] Embodiment 3: Prepare the bean dregs solid-state fermented feed material of the present embodiment according to the following method:

[0043] (1) Bean dregs steam explosion sterilization treatment: put the bean dregs into the steam explosion tank, feed 3Mpa steam into the steam explosion tank, keep for 4min, open the steam explosion valve, and obtain the bean dregs after the steam explosion;

[0044] (2) Dehydration: the bean dregs after steam explosion are extruded or dried by equipment, so that the moisture content is controlled at 55% by mass;

[0045] (3) Preparation of fermentation substrate: 84 parts by weight of dehydrated bean dregs, 10 parts by weight of bran, 15 parts by weight of lysine residue, 12 parts by weight of molasses, and 0.05 parts by weight of compound trace elements are fully mixed to make a fermentation substrate; Said compound trace element is made of 2.3 parts by weight FeS0 4 ·7H 2 0, 0.9 parts by weight MnS0 4 , 0.8 parts by weight ZnS0 ...

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Abstract

The invention relates to a method for preparing microbial cultures through solid state fermentation of bean dregs, and relates to the field of feed processing. The method comprises the following stepsof taking bean dregs, amino acid residues, bran, molasses and composite trace elements in a certain mass ratio, performing mixing to obtain a mixture as a fermentation substrate, regulating the moisture content, adding 3 kinds of bactera of corynebacterium glutamicum, aspergillus oryzae, plant lactobacillus and the like, controlling fermentation condition, and adopting combination of enzymolysis,aerobic fermentation and anaerobic fermentation so as to obtain the products namely the microbial cultures. When the method disclosed by the invention is used for producing the microbial cultures through solid state fermentation of bean dregs, the content of insoluble dietary fibers in the bean dregs is effectively reduced, the protein content is increased, and the method is suitable for industrial production of feeds.

Description

technical field [0001] The invention relates to the field of feed, in particular to a method for preparing microbial culture by solid-state fermentation of bean dregs. Background technique [0002] Tofu is the main processed product of soybeans. It originated in China with a long history, and the quantity of production and sales is quite large. When making bean products such as tofu, bean curd, and soy sauce, bean dregs will be produced, accounting for more than 30% of soybean raw materials. Tens of millions of tons of bean dregs are produced in my country every year. Compared with soybeans, bean dregs are still rich in protein, fat and dietary fiber. In addition, it also contains nutrients such as minerals and essential amino acids, but the okara contains a lot of water, and if it is not processed in time, it will become sour and corrupt, causing environmental pollution. Even if it is used as feed, its protein content is low, and it is high in crude fiber. Anti-nutritional f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/37A23K10/33A23K10/12A23K10/14A23K20/142A23K20/20A23K20/22A23L5/20
CPCA23K10/12A23K10/14A23K10/33A23K10/37A23K20/142A23K20/22A23K20/30A23L5/21Y02P60/87
Inventor 钱利纯姚磊
Owner ZHEJIANG UNIV
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