An integrated process to enhance ethanol production from steam-exploded corn stover

作者：Chu, Qiulu; Yang, Deliang; Li, Xin; Ma, Bin; Yu, Shiyuan; Yong, Qiang^*

来源：Fuel, 2013, 107: 823-827.

DOI：10.1016/j.fuel.2013.02.002

• Bioethanol
• Corn stover
• Enzymatic hydrolysis
• Saccharomyces cerevisiae
• Enzymatic hydrolysis residue

An integrated process of enzymatic hydrolysis and fermentation was investigated to enhance ethanol production from steam-exploded corn stover. The process included enzymatic hydrolysis at a low substrate loading, fermentation of concentrated supernatant and solid state fermentation of enzymatic hydrolysis residue. The results suggested that enzymatic hydrolysis at a low substrate loading caused a high hydrolysis efficiency; Fermentation of concentrated supernatant provided a high ethanol concentration of 92.33 g/L, which helped to decrease the cost of subsequent ethanol distillation; Simultaneous saccharification and fermentation of enzymatic hydrolysis residue was carried out, in order to enhance ethanol production as much as possible.

• 出版日期2013-5
• 单位南京林业大学