高产酵母菌Co-158耐副产物特性研究

Study on the Metabolic Byproduct-enduring Characteristics of High-yield Yeast Strain Co-158

对经60Co诱变筛选得到的高产酒精酵母Co-158菌株耐乙酸、耐甘油、耐乳酸特性进行研究,结果表明,当乙酸浓度>3.5%、甘油浓度>3.0%、乳酸浓度>2.5%时,对Co-158菌株开始有抑制作用;因此,Co-158菌株有较强的耐代谢副产物的能力。

The metabolic byproduct-enduring characteristics including acetic acid-enduring, glycerin-enduring and lactic acid-enduring of high-yield yeast strain Co-158 （produced by ^60Co induction mutation） were studied. The results suggested that yeast strain Co-158 was not restrained until the content of acetic acid was above 3.5 % ,the content of glycerin was above 3.0 % ,and the content of lactic acid was above 2.5 %. Accordingly, such strain had strong metabolic byproduct-enduring capability.