乙醇生产酵母菌的选育  

Breeding of a High ethanol-producing Yeast Strain

作　　者：杨登峰[1] 关妮[1] 米慧芝[1] 陆崎[1] 肖代俊[1] 黄日波[1] 

机构地区：[1]广西科学院工业微生物技术研究中心,广西南宁530003

出　　处：《现代食品科技》2008年第6期506-508,共3页Modern Food Science and Technology

基　　金：国家科技支撑计划资助项目(2007BAD75B05);桂科攻(0630003A2)

摘　　要：巴西燃料乙醇取得巨大成功,原油价格的不断攀升,以及糖价的下跌,以甘蔗为原料的燃料乙醇已经向世人展现出良好的市场潜力。但目前我国国内还尚未见到甘蔗汁乙醇的研究,作为一项储备技术,对甘蔗汁乙醇技术的研究具有十分重要的意义。本文对商业化和实验室筛选的多株酵母发酵甘蔗汁能力进行了研究。结果表明:sy酵母生长速度较快,gw2酵母产酒率较高,gw2酵母死亡率较低。综上,sy酵母和gw2酵母更适合于甘蔗汁发酵酒精的生产。The production of ethanol by sugarcane juice fermentation had great meaning to the development of our economy due to the rising oil price and lower sugar price. In this paper, a high ethanol-producing strain was screened from several yeasts. Two yeast （gw2 and sy ） were found to be suitable for the ethonal production via sugarcane juice fermentation for their higher ethanol-producing capabilities and lower mortality rate.

关 键 词：乙醇 酵母 甘蔗汁 发酵 

分 类 号：TQ223.122[化学工程—有机化工]