[关键词]
[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。
[Key word]
[Abstract]
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.
[中图分类号]
[基金项目]
国家科技支撑计划资助项目(2007BAD75B05);桂科攻(0630003A2)