Inhibitor-resistant saccharomyces cerevisiae and selective culture method and application thereof

A technology of Saccharomyces cerevisiae and Saccharomyces cerevisiae is applied in the field of Saccharomyces cerevisiae to achieve the effects of improving utilization rate and short fermentation time
CN110358690AActive Publication Date: 2019-10-22ZHONGRONG TECH CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHONGRONG TECH CORP LTD
Publication Date
2019-10-22

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Abstract

The invention relates to an inhibitor-resistant saccharomyces cerevisiae and a selective culture method and application thereof. The inhibitor-resistant saccharomyces cerevisiae is named as ZR / SC-UV-2, classified and named as saccharomyces cerevisiae, and deposited in the China general microbiological culture collection center, the preservation number is CGMCCNo.17924, and the preservation addressis No.3, yard 1, Beichen west road, Chaoyang district in Beijing. The selective culture method includes the following steps that the saccharomyces cerevisiae of xylose can be used as a starting strain, and the inhibitor-resistant saccharomyces cerevisiae is obtained after UV-induced screening. The UV mutagenesis condition includes the following steps that under a light-shading condition, a UV lamp of 15-20 W is used for irradiating for 30-600 seconds at a distance of 15-20 cm for UV mutagenesis. Compared with the prior art, the saccharomyces cerevisiae has strong resistance to an inhibitor incellulose hydrolysate, the degradation rate of the xylose is high, the fermentation time is short, and the system is suitable for the industrialized production of ethanol prepared from agricultural straw.
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Description

technical field

[0001] The invention relates to a Saccharomyces cerevisiae, in particular to a Saccharomyces cerevisiae resistant to inhibitors and its breeding method and application. Background technique

[0002] Fuel ethanol is obtained from biological resources through a series of physical, biological, and chemical changes. It is a clean, renewable, and carbon-free transportation fuel during production. It is currently the most widely used biological transportation fuel. Among them, lignocellulosic biomass, represented by crop straw, is cheap and abundant, and is a recognized raw material source for the large-scale development of the fuel ethanol industry (Hossain Zabed, Jaya Narayan Sahu, Akter Suely, et al. Bio-ethanol production from renewable sources: current perspectives and technological progress. Renewable and Sustainable Energy Reviews, 2017, 71: 475-501.).

[0003] Lignocellulosic raw materials are pretreated and hydrolyzed into monosaccharides, mainly glucose ...

Claims

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