Mutation and selection of high fermentation rate of D-lactic acid producing strain by atmospheric and room temperature plasmas

BAI Zhong-zhong; SUN Jia-duo; WU Bin

doi:10.13386/j.issn1002-0306.2013.24.038

BAI Zhong-zhong, SUN Jia-duo, WU Bin. Mutation and selection of high fermentation rate of D-lactic acid producing strain by atmospheric and room temperature plasmas[J]. Science and Technology of Food Industry, 2013, (24): 173-176. DOI: 10.13386/j.issn1002-0306.2013.24.038

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Mutation and selection of high fermentation rate of D-lactic acid producing strain by atmospheric and room temperature plasmas

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To obtain Sporolactobacillus mutants with improved fermentation rate, an atmospheric and room temperature plasma (ARTP) jet was firstly used to treat the Sporolactobacillus sp.Y2-8 which was bred in our previous research.The mutant with high D-lactic acid producing rate, named Y90s-1, was quickly screened according to high glucose concentration and pH indicator (bromocresol green) selecting plates.This mutant had good genetic stability and the D-lactic acid production rate reached 1.05g/ (L·h) , which was higher 36.3% than that of the original strain.

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Science and Technology of Food Industry

Mutation and selection of high fermentation rate of D-lactic acid producing strain by atmospheric and room temperature plasmas

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