玉米生料发酵生产燃料乙醇工艺研究  

Fuel alcohol production technology with the fermentation of uncooked corn flour

作　　者：卢晓霆[1] 张太日 闫俊[3] 贾鹏[1] 

机构地区：[1]长春工业大学化学与生命科学学院,吉林长春130012 [2]吉林省石油化工设计研究院,吉林长春130021 [3]吉林省轻工业设计研究院,吉林长春130021

出　　处：《中国酿造》2009年第7期128-132,共5页China Brewing

基　　金：吉林省教育厅‘十一五’科研规划项目(吉教科合字〔2007〕第105号)

摘　　要：对玉米生料发酵生产燃料酒精工艺进行了研究。通过正交试验得到生料发酵工艺最佳条件:酵母0.3%,糖化酶200U/g,纤维素酶0.15%,料水比1∶2.5,搅拌为140r/min,发酵温度29℃。在此条件下,进行10L发酵罐试验,发酵时间120h左右,最终淀粉利用率为93%左右。考虑到综合技术与经济效益,最终的最佳条件确定为:酵母0.2%,糖化酶250U/g,纤维素酶0.1%,料水比1∶2.5,搅拌为140r/min,发酵温度29℃,发酵时间为85h～95h。Fuel alcohol production technology with the fermentation of uncooked corn flour was studied in this paper. The results were as following： through the orthogonal experiment, the optimum conditions of uncooked corn fermentation were 0.3% yeast, 200 U/g saccharifying enzyme, 0.15% cellulase, the ratio of material to water 1 ： 2.5, the stirring speed 140 r/min, and the fermentation temperature 29℃. Under these conditions, the fermentation was processed in a 10 L fermenter, and through the fermentation period of 120 h, the final utilization ratio of starch is 93% or so. Taking the comprehensive technological and economic benefit into consideration, the optimum conditions are designed as 0.2% yeast, 250 U/g saccharifying enzyme, 0.1% cellulase, the ratio of material to water 1 ： 2.5, the stirring speed 140r/min, the fermentation temperature 29℃, and the fermentation period 85 h-95 h.

关 键 词：玉米 生料发酵 燃料酒精 工艺 

分 类 号：TQ92[轻工技术与工程—发酵工程]