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Biomass-Water Interaction and Its Correlations with Enzymatic Hydrolysis of Steam-Exploded Corn Stover
Liu, Zhi-Hua1,2; Chen, Hong-Zhang1
2016-03-01
发表期刊ACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
卷号4期号:3页码:1274-1285
摘要

Author: Biomass water interaction is a main factor affecting the enzymatic hydrolysis process. The interactions between corn stover and water and their correlations with enzymatic hydrolysis performance were investigated. The peak height of the main water pool was lower, peak width at half-height was bigger, and T2 relaxation time was shorter in steam-exploded corn stover (SECS) than in untreated corn stover (UCS). The relations between the total peak area of water pools and the moisture content can be well expressed by exponential models. Steam explosion enhanced corn stover water interactions due to an increase in specific surface area, pore volume, average pore diameter, porosity, and oxygen to carbon ratio. Small particle size strengthened UCS water interactions while slightly weakening SECS water interactions. In enzymatic hydrolysis, constrained water was released before 36 h, which was consistent with the increase in glucan conversion. The release of constrained water and increase in glucan conversion facilitated each other. Steam explosion enhanced the interactions between SECS and water (mainly bound water), which increased the accessibility of carbohydrates to enzymes. Therefore, the release of constrained water before 36 h and the increase in SECS water interactions on the surface of SECS facilitated the enzymatic hydrolysis efficiency.

关键词Biomass-water Interactions Steam Explosion Enzymatic Hydrolysis Water Pool Time Domain Nuclear Magnetic Resonance (Td-nmr) Particle Size
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acssuschemeng.5b01303
收录类别SCI
语种英语
关键词[WOS]Nuclear-magnetic-resonance ; Lignocellulosic Biomass ; Solids Loadings ; Particle-size ; Wheat-straw ; Pretreatment ; Cellulose ; Saccharification ; Digestibility ; Accessibility
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
项目资助者National High Technology Research and Development Program of China (863 Program)(SS2012AA022502) ; National Key Laboratory of Biochemical Engineering(2013KF-01)
WOS记录号WOS:000371755400078
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20622
专题研究所(批量导入)
通讯作者Chen, Hong-Zhang
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
推荐引用方式
GB/T 7714
Liu, Zhi-Hua,Chen, Hong-Zhang. Biomass-Water Interaction and Its Correlations with Enzymatic Hydrolysis of Steam-Exploded Corn Stover[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2016,4(3):1274-1285.
APA Liu, Zhi-Hua,&Chen, Hong-Zhang.(2016).Biomass-Water Interaction and Its Correlations with Enzymatic Hydrolysis of Steam-Exploded Corn Stover.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,4(3),1274-1285.
MLA Liu, Zhi-Hua,et al."Biomass-Water Interaction and Its Correlations with Enzymatic Hydrolysis of Steam-Exploded Corn Stover".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 4.3(2016):1274-1285.
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