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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
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume223Pages:47-58
Abstract

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.

KeywordSteam Explosion Particle Size Post-washing Water Holding Capacity Water Efficiency Factor Simultaneous Saccharification And Fermentation (Ssf)
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2016.10.049
Indexed BySCI
Language英语
WOS KeywordSolids Enzymatic-hydrolysis ; Pretreatment Technologies ; Explosion Pretreatment ; Biomass ; Lignocellulose ; Digestibility ; Inhibitors ; Loadings
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Funding OrganizationOpen Funding Project of the National Key Laboratory of Biochemical Engineering(2013KF-01)
WOS IDWOS:000395689000007
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/22011
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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