四川大学学报（自然科学版）2011，Vol.48Issue(4)：905-909,5.DOI:10.3969/j.issn.0490-6756.2011.04.034
运动发酵单胞菌快速发酵甘薯淀粉产乙醇的研究
Fast production of ethanol from sweet potato starch by Zymomonas mobilis
摘要
Abstract
Comparison of ethanol production was made among 4 Zymomonasmobilis strains (CICC10225,ATCC29191 ,CICC10232,IFFI10225)in composit fermentation media and in sweet potato media with different glucose concentration and it was found that the strain CICC10225 was the best one for ethanol production. The results from the further ethanol fermentation using Z. Mobilis CICC10225 in sweet potato meida showed that this strain could fast metabolite substrates glucose into ethanol. During the fermentation in sweet potato media by using free Z. Mobilis CICC10225 cells,the highest concentration of ethanol is 79. 8 g/L,the highest ethanol productivity (Yp/s) was 0. 49 and ethanol production reached 95.5% of the theoretical value. However,during the continuous fermentation using immobilized cells,fermentation time could greatly reduced to 8 h with the ethanol concentration and productivity of 88. 03 g/L and 0. 50,respectively.关键词
运动发酵单胞菌/乙醇发酵/固定化细胞/甘薯淀粉Key words
Zymomonas mobilis/ethanol fermentation/immobilized cell/sweet potato starch分类
生物科学引用本文复制引用
江宗凯,张义正..运动发酵单胞菌快速发酵甘薯淀粉产乙醇的研究[J].四川大学学报（自然科学版）,2011,48(4):905-909,5.基金项目
国家科技支撑计划项目(2007BAD78B03) （2007BAD78B03）
