YDL080c基因缺失的低异戊醇酿酒酵母菌构建
发布时间:2019-02-22 20:24
【摘要】:[目的]构建YDL080c基因缺失的低异戊醇生成的酿酒酵母菌。[方法]利用Cre-lox P重组系统与酵母电转化法敲除酿酒酵母中编码类丙酮酸脱羧酶的基因YDL080c,切断酿酒酵母代谢中的异戊醇生成,从而构建一株低异戊醇生成的酿酒酵母菌株。[结果]成功构建出YDL080c基因缺失的工程酵母菌Y1,Y1酿造酒中相对异戊醇含量为0.81 g/L,比初始菌降低28.3%。[结论]利用基因敲除YDL080c的工程酵母菌能够有效减少酿造酒中异戊醇的生成量。
[Abstract]:[objective] to construct a low isoamyl alcohol producing Saccharomyces cerevisiae (Saccharomyces cerevisiae) with YDL080c gene deletion. [methods] the isoamyl alcohol production in Saccharomyces cerevisiae metabolism was cut off by Cre-lox P recombination system and yeast electrotransformation method by knockout the gene YDL080c, encoding pyruvate decarboxylase in Saccharomyces cerevisiae. Thus, a low isoamyl alcohol producing Saccharomyces cerevisiae strain was constructed. [results] the relative isoamyl alcohol content was 0.81 g 路L ~ (-1), 28.3g / L lower than that of the original strain. [conclusion] the production of isoamyl alcohol in brewing wine can be effectively reduced by using YDL080c knockout engineering yeast.
【作者单位】: 华南理工大学生物科学与工程学院;汕尾市青梅产业研究院;
【分类号】:Q78;Q93
本文编号:2428590
[Abstract]:[objective] to construct a low isoamyl alcohol producing Saccharomyces cerevisiae (Saccharomyces cerevisiae) with YDL080c gene deletion. [methods] the isoamyl alcohol production in Saccharomyces cerevisiae metabolism was cut off by Cre-lox P recombination system and yeast electrotransformation method by knockout the gene YDL080c, encoding pyruvate decarboxylase in Saccharomyces cerevisiae. Thus, a low isoamyl alcohol producing Saccharomyces cerevisiae strain was constructed. [results] the relative isoamyl alcohol content was 0.81 g 路L ~ (-1), 28.3g / L lower than that of the original strain. [conclusion] the production of isoamyl alcohol in brewing wine can be effectively reduced by using YDL080c knockout engineering yeast.
【作者单位】: 华南理工大学生物科学与工程学院;汕尾市青梅产业研究院;
【分类号】:Q78;Q93
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