文献类型：期刊文献

英文题名：Bioethanol production from starchy biomass by direct fermentation using Saccharomyces diastaticus in batch free and immobilized cell systems

作者：Kilonzo, Peter M.[1]; Margaritis, Argyrios[1]; Yu, Juntang[2]; Ye, Qin[2]

机构：[1] Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON, Canada; [2] Biochemical Engineering Research Institute, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China

年份：2007

卷号：4

期号：1

起止页码：1

外文期刊名：International Journal of Green Energy

收录：EI(收录号：20072710684241)

语种：英文

外文关键词：Biomass - Bioreactors - Cell immobilization - Conversion efficiency - Fermentation - Starch - Yeast

摘要：Direct ethanol fermentation of soluble starch or dextrin with the amylolytic yeast Saccharomyces diastaticus was investigated in batch free and immobilized cells systems. In batch fermentations, the cells fermented high dextrin concentrations more efficiently. More than 92 g/l of ethanol was produced from 240 g/l of dextrin, at a conversion efficiency of 90%. The conversion efficiency decreased to 60% but a higher final ethanol concentration of 147 g/l was attained with a medium containing 500 g/l of dextrin. S. diastaticus in an immobilized cell bioreactor produced 83 g/l of ethanol from 240 g/l of dextrin, corresponding to an ethanol volumetric productivity of 9.1 g/l/h.