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Two-step size reduction and post-washing of steam exploded corn stover improving simultaneous saccharification and fermentation for ethanol production
Liu, Zhi-Hua1,2; Chen, Hong-Zhang1
2017
发表期刊BIORESOURCE TECHNOLOGY
ISSN0960-8524
卷号223页码:47-58
摘要The simultaneous saccharification and fermentation (SSF) of corn stover biomass for ethanol production was performed by integrating steam explosion (SE) pretreatment, hydrolysis and fermentation. Higher SE pretreatment severity and two-step size reduction increased the specific surface area, swollen volume and water holding capacity of steam exploded corn stover (SECS) and hence facilitated the efficiency of hydrolysis and fermentation. The ethanol production and yield in SSF increased with the decrease of particle size and post-washing of SECS prior to fermentation to remove the inhibitors. Under the SE conditions of 1.5 MPa and 9 min using 2.0 cm particle size, glucan recovery and conversion to glucose by enzymes were 86.2% and 87.2%, respectively. The ethanol concentration and yield were 45.0 g/L and 85.6%, respectively. With this two-step size reduction and post-washing strategy, the water utilization efficiency, sugar recovery and conversion, and ethanol concentration and yield by the SSF process were improved. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Steam Explosion Particle Size Post-washing Water Holding Capacity Water Efficiency Factor Simultaneous Saccharification And Fermentation (Ssf)
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2016.10.049
收录类别SCI
语种英语
关键词[WOS]SOLIDS ENZYMATIC-HYDROLYSIS ; PRETREATMENT TECHNOLOGIES ; EXPLOSION PRETREATMENT ; BIOMASS ; LIGNOCELLULOSE ; DIGESTIBILITY ; INHIBITORS ; LOADINGS
WOS研究方向Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS类目Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
项目资助者Open Funding Project of the National Key Laboratory of Biochemical Engineering(2013KF-01)
WOS记录号WOS:000395689000007
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22011
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
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Liu, Zhi-Hua,Chen, Hong-Zhang. Two-step size reduction and post-washing of steam exploded corn stover improving simultaneous saccharification and fermentation for ethanol production[J]. BIORESOURCE TECHNOLOGY,2017,223:47-58.
APA Liu, Zhi-Hua,&Chen, Hong-Zhang.(2017).Two-step size reduction and post-washing of steam exploded corn stover improving simultaneous saccharification and fermentation for ethanol production.BIORESOURCE TECHNOLOGY,223,47-58.
MLA Liu, Zhi-Hua,et al."Two-step size reduction and post-washing of steam exploded corn stover improving simultaneous saccharification and fermentation for ethanol production".BIORESOURCE TECHNOLOGY 223(2017):47-58.
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