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Method for preparing yeast culture by continuous fermentation of distillers' grains

A technology of yeast culture and white distiller's grains, applied in application, animal feed, animal feed and other directions, can solve the problems of unsatisfactory nutritional structure of fresh distiller's grains, environmental pollution of white distiller's grains, poor management, etc., and achieve rich amino acid composition and increase units Yield, the effect of improving fermentation efficiency

Pending Publication Date: 2020-04-17
安徽东方新新生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of the liquor industry, the utilization of distiller's grains, a by-product of liquor, has become the focus of the industry's work. The degree of comprehensive utilization of distiller's grains directly affects the development of enterprises. If it is not handled properly, the pressure on the environment will be huge; It is also related to the implementation of the national feed policy; however, the water content of fresh distiller's grains is as high as 65%, and it is extremely difficult to store. The requirements of scientific feeding in the breeding industry and the needs of scale development; in order to better deal with distiller's grains and make them suitable feed for livestock and aquatic animals, fermenting distiller's grains into yeast culture is one of the good solutions

Method used

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  • Method for preparing yeast culture by continuous fermentation of distillers' grains
  • Method for preparing yeast culture by continuous fermentation of distillers' grains
  • Method for preparing yeast culture by continuous fermentation of distillers' grains

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Mix bran: urea: ammonium sulfate: calcium carbonate at a ratio of 20:1:2:6 as auxiliary material, and mix auxiliary material with fresh distiller's grains at a ratio of 2.9:100 to form a distiller's grain mixture. Specifically, take 100Kg of fresh distiller's grains, add 2.9Kg of auxiliary materials, mix evenly to make a mixture of distiller's grains, and then inoculate 10L of liquid yeast strains, after mixing evenly, imitate a mobile fermentation tank, pile up and ferment, and turn the material regularly , the fermentation temperature is controlled at 30-32°C, the moisture is controlled at 50-55%, when the pH value rises to 4.5-5.0, the fermentation is completed, and the solid fermentation product is obtained, and 50Kg of the solid fermentation product is weighed as a solid strain for future use. The remaining part is dried, crushed and packaged, and the solid fermentation product of this part is made into yeast culture; weigh 62.9Kg of distiller's grain mixture mixed ...

Embodiment 2

[0046] Embodiment 2: Consistent with the steps of Embodiment 1, only the control of the pH value at the end of the fermentation is changed. When the pH value rises to 5.0-5.5, the fermentation is completed.

[0047]

Embodiment 3

[0048] Embodiment 3: Consistent with the steps of Embodiment 1, only the control of the pH value at the end of the fermentation is changed. When the pH value rises to 5.5-6.0, the fermentation is completed.

[0049]

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Abstract

The invention discloses a method for preparing a yeast culture by continuous fermentation of distillers' grains, which comprises the following steps: a, primary fermentation: (1) mixing auxiliary materials with fresh distillers' grains, and inoculating a liquid yeast strain; (2) when a pH value is increased to 4.5-6.0, completing the fermentation to prepare a solid fermentation product; (3) weighing a certain percentage of the solid fermentation product as a solid strain for later use, and preparing the residual solid fermentation product into a yeast culture product; b, secondary fermentation: (4) weighing the auxiliary materials and fresh distiller's grains, and mixing the auxiliary materials and the fresh distiller's grains with solid strains; (5) when the pH value is increased to 4.5-6.0, completing the fermentation to prepare a secondary solid fermentation product; (6) repeating the step (3), weighing the solid strain for later use, and remaining the solid fermentation product toprepare a secondarily fermented yeast culture; and c, circulating fermentation; and (7) circulating the step (4) to the step (6). A continuous fermentation and periodic circulation mode is adopted, and liquid strains do not need to be added for the second time.

Description

technical field [0001] The invention belongs to the technical field of yeast culture preparation, and in particular relates to a method for preparing yeast culture by continuous fermentation of distiller's grains. Background technique [0002] Yeast culture is a micro-ecological product formed by yeast on a special medium after full fermentation under the control of specific process conditions. In addition to denatured medium, it also includes cell metabolites and yeast cells themselves, so Yeast culture can stimulate the microbial bacteria in the intestines and stomach of animals, promote the healthy growth of animals, so as to achieve the purpose of improving feed utilization and improving animal productivity. [0003] With the development of the liquor industry, the utilization of distiller's grains, a by-product of liquor, has become the focus of the industry's work. The degree of comprehensive utilization of distiller's grains directly affects the development of enterpr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/10
CPCA23K10/10
Inventor 周福通徐建晨韦敏侠谢申猛
Owner 安徽东方新新生物技术有限公司