Application of enzyme systems for viscosity reduction in bioethanol production from fresh sweetpotato

摘要：

The limitation of using root of fresh sweetpotato mash at high solids content is attributed to its high viscous nature. The aim of this study was to develop enzyme systems for viscosity reduction. Under the function of optimal enzyme system, viscosity of fresh sweetpotato mash was reduced from 37209 mPa. S to 1318 mPa. S.and ethanol concentration of 9.91％ (v/v) was attained. After being processed with the enzyme system for viscosity reduction,the chemical oxygen demand(COD) in the fermentation wastewater was partially removed and reduced from 64200mg/L to 41200 mg/L. These findings have considerable practical values due to the increasing interest in sweetpotato from both the economic and environmentally friendly standpoints.

关键词： sweetpotato bioethanol viscosity reduction enzyme systems

作者: Jin Yan-ling Zhang Liang Fang Yang He Kai-ze

作者单位: Chengdu Institute of Biology,Chinese Academy of Sciences,Chengdu,Sichuan,China 610041

会议类型: 国际会议

会议名称: China Xuzhou 4th International Sweetpotato Symposium & 4th China-Japan-Korea Workshop(中国徐州第四届国际甘薯学术研讨会暨第四届中日韩甘薯学术讨论会)

会议地点: 徐州

会议语种:英文

页码: 599-606

在线出版日期: 2010-11-27（万方平台首次上网日期，不代表论文的发表时间）