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Beer yeast rapid fermentation method and application thereof

A brewer's yeast, fast technology, applied in beer fermentation methods, beer brewing, biochemical equipment and methods, etc., to ensure normal supply, maintain good yeast activity, and avoid yeast physiological damage.

Active Publication Date: 2019-04-16
广州南沙珠江啤酒有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to address the above problems and provide a rapid fermentation method for beer yeast, which can realize rapid fermentation and effectively solve the problem of beer quality caused by the continuous use of high-generation yeast or abnormal yeast in the production of original beer enterprises when yeast is in short supply. Adverse effects, not only to ensure product quality, but also to ensure the normal supply of the market

Method used

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  • Beer yeast rapid fermentation method and application thereof
  • Beer yeast rapid fermentation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A kind of brewer's yeast fast fermenting method, comprises the following steps:

[0031] 1. Pre-expansion.

[0032] According to the conventional production, the yeast is subjected to the first-level expansion and the second-level expansion in sequence, as follows:

[0033] In the normal production of beer, the yeast expansion is carried out in advance, and the yeast expansion is expanded from the experimental test tube to the three-stage expansion tank (13 to 25m 3 ).

[0034] In normal production, 2 pots of expanded wort will be produced according to the expansion schedule. Take 80 to 120 liters of wort from the first pot of expanded cultivation, and use it after sterilization for the expansion of cultivation steps from test tubes to Karst tanks; after 4 days, arrange the production of the second pot of expanded wort and take 4 to 5m 3 After sterilization, it is used for the expansion of the first-level expansion tank and the second-level expansion tank expansion s...

Embodiment 2

[0043] A rapid fermentation method for beer yeast, which is basically the same as the method in Example 1, the only difference being that in the three-stage expansion step, the temperature drops to 2°C within 24 hours, and then at a temperature of 2°C, 0.01 to 0.05 Store under the pressure of MPa for 30 days, and the temperature of the expansion medium is controlled at 2±3°C throughout the storage period.

Embodiment 3

[0045] A rapid fermenting method for brewer's yeast, which is basically the same as the method in Example 1, the only difference being that the third-stage expansion culture liquid is refrigerated for 90 days and put into use.

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PUM

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Abstract

The invention relates to a beer yeast rapid fermentation method and application thereof, and belongs to the technical field of beer brewing processes. The method comprises the following steps of pre-expansion culture: conducting first-stage expansion culture and second-stage expansion culture on the yeast sequentially; third-stage expansion culture: adding high-nutrition wort during the third-stage expansion culture, cooling to -2-5 DEG C when the yeast in an expansion culture solution is proliferated to 40-80 million / ml, and refrigerating the expansion culture solution for use; expansion culture activation: activating the yeast of the refrigerated expansion culture solution; fermentation production: mixing the expansion culture solution activated by the yeast with the expansion culture wort and delivering the mixture into a fermentation tank for the fermentation production. According to the beer yeast rapid fermentation method, the high-nutrition wort is added during the expansion culture in a three-stage expansion culture tank, and the growth of the yeast is strictly controlled in the third-stage expansion culture process. The preserved yeast is activated in advance before use toensure the activity of the yeast after the large production, and the problem that the yeast is prone to performance degradation and short storage time during workshop storage is effectively solved.

Description

technical field [0001] The invention relates to the technical field of beer brewing technology, in particular to a rapid fermentation method of beer yeast and its application. Background technique [0002] In the daily production process of the beer industry, there will be a shortage of yeast, especially in the peak production season, there will be a temporary increase in the production plan or other reasons that will cause a shortage of yeast in the workshop, which will affect the smooth completion of the production plan and even cause the market to be out of stock. [0003] When there is a shortage of yeast in the workshop, if the yeast expansion culture is restarted, it needs to be expanded from the laboratory test tube stage, and it takes about 8 to 9 days to expand the culture to the fermenter, which will affect production and market supply; if the use has been used Eliminated high-generation yeast or abnormal yeast production will adversely affect the quality of beer f...

Claims

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Application Information

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IPC IPC(8): C12C11/00
CPCC12C11/00
Inventor 刘奋强王志斌王培武陈君熊丹李铭张宇锋
Owner 广州南沙珠江啤酒有限公司