A kind of high sugar tolerance yeast and its application

A technology of zygosaccharomyces zygosaccharomyces and zygosaccharomycesmellis, which is applied in the direction of fungi, microorganisms, microorganisms, etc., can solve the problems of weak resistance to stress, and achieve the effects of short lag period, good stress resistance, and normal and rapid growth
CN105420131BActive Publication Date: 2018-10-23ZHONGKAI UNIV OF AGRI & ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHONGKAI UNIV OF AGRI & ENG
Publication Date
2018-10-23

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Abstract

The invention relates to the technical field of microbial fermentation, in particular to a high-sugar tolerant yeast and its application. The high-sugar tolerant yeast is Zygosaecharomyces mellis LGL‑1, and its preservation number is CCTCC No.M 2015545. The lagging period of the high-sugar tolerant yeast is relatively short, and the logarithmic growth period and equilibrium period are long, which can save costs when used in actual production; especially it has good stress resistance, such as a tolerable concentration of 70% (w / v) total sugar, 12% (v / v) alcohol tolerance concentration, when the pH is 2.5, the high-sugar-tolerant yeast can grow normally and rapidly, and has strong acid resistance.
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Description

technical field

[0001] The invention relates to the technical field of microbial fermentation, in particular to a high-sugar tolerant yeast and its application. Background technique

[0002] Yeast is a tiny single-cell microorganism invisible to the naked eye. It can ferment sugar into alcohol and carbon dioxide. It is a natural leavening agent distributed throughout nature. It has its own life phenomenon and is a typical facultative aversion Aerobic microorganisms can survive in the presence and absence of oxygen. At present, there are more than 500 known species of yeast, with a total of 56 genera, belonging to Deuteromycotina, Ascomycotina and Basidiomycotina.

[0003] With the development of the economy, the new trend of alcohol industry production is thick mash fermentation. The biggest feature of this fermentation process is that the alcohol concentration produced is high, and the sugar concentration in the mash is also high. In the process of alcohol production, the...

Claims

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