摘要
本文介绍了发酵木糖产酒精酵母菌种的筛选方法并利用该方法筛选出一株性能优良的发酵木糖产酒精酵母菌株Z8。该菌株性能测试结果为 :发酵木糖产乙醇能力相当于理论产量的 60 .0 % ;发酵葡萄糖浓度为 8%的发酵液 ,乙醇转化率为0 .3 88g/g;最低乙醇抑制浓度 14% (v/v) ;在温度高达 42℃的条件下仍能正常生长。并初步鉴定该菌株为奥默毕赤氏酵母(Pichiaahmeri)。
A strain that could ferment xylose to ethanol was screened out and identified in this paper. The following was the test results of the strain: The ethanol yield fermenting xylose of the strain was 60.0% of the theoretical yield. It could ferment normally at 42℃ and the highest ethanol concentration that the strain could grow was 14%(v/v). It was primarily identified as Pichia ahmeri.
