Ethanol production by non-cook fermentation from cassava:process optimization based on uniform design and support vector regression

摘要：

　　The process parameters of ethanol production from cassava (Manihot esculenta crantz) fermentation were optimized through single-factor experiments based on Uniform Design (UD) and support vector regression (SVR).The optimal ethanol yield (15.7%) was obtained at the following conditions: reactant/water ratio,1∶1.8; initial pH,3.5; temperature,32℃; yeast,3.5 × 107 cell/mL; (NH4)2SO4,0.5 g; rotation speed,140 rpm; glucoamylase,200 u/g; amylase,12 u/g; cellulase,25 u/g; fermentation cycle,120 h.The maximum raw material conversion (38.63%) was obtained at the following conditions: reactant/water ratio,1∶3.1; initial pH,4; temperature,36℃; yeast,5.5 × 107 cell/mL; (NH4)2SO4,1 g; rotation speed,160 rpm; glucoamylase,110 u/g; amylase,10 u/g; cellulase,25 u/g; fermentation cycle,120 h.

关键词： Cassava non-cook fermentation bioethanol optimization Uniform Design Support Vector Regression

作者: Xiaojun SU Liu CAI Xiansheng TAN Qingming LI Qiulong HU Xingyao XIONG Zheming YUAN

作者单位: Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop, Hunan Agricultural Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop, Hunan Agricultural College of Bio-safety Science and Technology, Hunan Agricultural University, Changsha, 410128, China Hunan Provincial Key Laboratory for Germplasm Innovation and Utilization of Crop, Hunan Agricultural

会议类型: 国内会议

会议名称: 第四届中国能源科学家论坛

会议地点: 北京

会议语种:英文

页码: 117-123

在线出版日期: 2012-11-01（万方平台首次上网日期，不代表论文的发表时间）