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Periodic peristalsis enhancing the high solids enzymatic hydrolysis performance of steam exploded corn stover biomass
Liu, Zhi-Hua1,2; Chen, Hong-Zhang1
2016-10-01
发表期刊BIOMASS & BIOENERGY
ISSN0961-9534
卷号93期号:OCT页码:13-24
摘要

Enzymatic hydrolysis beyond 15% solid loading offers many advantages such as increased sugar and ethanol concentrations and decreased capital cost. However, difficult mixing and handling limited its industrialized application. A novel intensification method, periodic peristalsis, had been exploited to improve the high solids enzymatic hydrolysis performance of steam exploded corn stover (SECS). The optimal steam explosion conditions were 200 degrees C and 8 min, under which glucan and xylan recovery was 94.3% and 64.8%, respectively. Glucan and xylan conversions in periodic peristalsis enzymatic hydrolysis (PPEH) were 28.0-38.5% and 25.0-36.0% higher than those in static state enzymatic hydrolysis with solid loading increasing from 1% to 30%, respectively, while they were 1.0-11.2% and 3.0-9.2% higher than those in incubator shaker enzymatic hydrolysis (ISEH). Glucan and xylan conversion in PPEH at 21% solid loading reached 71.2% and 70.3%, respectively. Periodic peristalsis also facilitated fed-batch enzymatic hydrolysis of which SECS was added completely before transition point. Results presented that PPEH shortened the transition point time from solid state to slurry state, decreased the viscosity of hydrolysis mixture, and reduced the denaturation effect of enzymes compared with ISEH, and hence improve the high solids enzymatic hydrolysis efficiency. (C) 2016 Elsevier Ltd. All rights reserved.

关键词Periodic Peristalsis High Solids Enzymatic Hydrolysis Steam Explosion Enzyme Activity Viscosity
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biombioe.2016.06.022
收录类别SCI
语种英语
关键词[WOS]SIMULTANEOUS SACCHARIFICATION ; EXPLOSION PRETREATMENT ; CELLULOSE HYDROLYSIS ; ETHANOL-PRODUCTION ; PARTICLE-SIZE ; LIGNOCELLULOSE ; DIGESTIBILITY ; FRACTIONATION ; FERMENTATION ; BIOETHANOL
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National Basic Research Program of China (973 Project)(2011CB707401) ; National Key Laboratory of Biochemical Engineering(2013KF-01)
WOS记录号WOS:000382541000003
引用统计
被引频次:6[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/122111/21442
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.Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China
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Liu, Zhi-Hua,Chen, Hong-Zhang. Periodic peristalsis enhancing the high solids enzymatic hydrolysis performance of steam exploded corn stover biomass[J]. BIOMASS & BIOENERGY,2016,93(OCT):13-24.
APA Liu, Zhi-Hua,&Chen, Hong-Zhang.(2016).Periodic peristalsis enhancing the high solids enzymatic hydrolysis performance of steam exploded corn stover biomass.BIOMASS & BIOENERGY,93(OCT),13-24.
MLA Liu, Zhi-Hua,et al."Periodic peristalsis enhancing the high solids enzymatic hydrolysis performance of steam exploded corn stover biomass".BIOMASS & BIOENERGY 93.OCT(2016):13-24.
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