发酵木糖产酒精酵母菌的初步研究  

The initial research of yeast fermenting xylose to produce alcohol

作　　者：张金桃[1] 周传云[1] 

机构地区：[1]湖南农业大学食品科技学院,长沙410128

出　　处：《食品科技》2007年第8期31-34,共4页Food Science and Technology

摘　　要：采用稀释平板法及划线分离法从自然环境中筛选获得120株形态特征不尽相同的酵母菌,然后通过发酵木糖、葡萄糖试验获得6株能利用木糖为唯一碳源生长的酵母菌株,其中有1株分解木糖产乙醇能力较佳,其发酵条件为:96r/min摇瓶发酵、温度为30℃、木糖浓度为3.0%时木糖转化率最高达7.1%。This article with the dilution flat pane method and lineation separation method from the natural environment acquired 120 stubs yeast with different appearance characteristics, then by fermenting xylose experiment acquired 6 stubs yeast can make use of xylose as the unique carbon source to grow, from which sieved 1 stub yeast making use of xylose to produce higher alcohol. Its fermentation parameters are： 96r/min, temperature is 30℃, xylose density is 3%, the xylose conversion rate is the highest, reached 7.1%.

关 键 词：酵母菌 木糖 唯一碳源 乙醇 

分 类 号：TS201.3[轻工技术与工程—食品科学]