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Cellulase deactivation based kinetic modeling of enzymatic hydrolysis of steam-exploded wheat straw
Zhang, Yu1,2; Xu, Jing-Liang1; Xu, Hui-Juan1; Yuan, Zhen-Hong1; Guo, Ying1,2
2010-11-01
发表期刊BIORESOURCE TECHNOLOGY
ISSN0960-8524
卷号101期号:21页码:8261-8266
产权排序[Zhang, Yu; Xu, Jing-Liang; Xu, Hui-Juan; Yuan, Zhen-Hong; Guo, Ying] Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China; [Zhang, Yu; Guo, Ying] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
通讯作者yuanzh@ms.giec.ac.cn
摘要Applying mass action law and quasi-steady-state theory, two cellulase kinetic models namely Eqs. (5) and (8) were developed on the basis of the first and second order reactions of enzyme deactivation, respectively. The two models are compared according to analysis of experimental data from enzymatic hydrolysis steam-exploded wheat straw. Both simulation and prediction results show Eq. (8) has much higher accuracy than Eq. (5). Analysis of initial hydrolysis rate is also in accordance with Eq. (8) and against Eq. (5). Fitted values of k(2) (the rate constant of product formation), k(de2) (the rate constant of enzyme deactivation) and K(e) (the equilibrium constant) determined from Eq. (8) are 0.4732 h(-1), 0.4011 L/(h g), and 16.8597 g/L, respectively. The higher the enzyme concentration is, the larger the deactivation rate. (C) 2010 Elsevier Ltd. All rights reserved.
文章类型Article
其他摘要Applying mass action law and quasi-steady-state theory, two cellulase kinetic models namely Eqs. (5) and (8) were developed on the basis of the first and second order reactions of enzyme deactivation, respectively. The two models are compared according to analysis of experimental data from enzymatic hydrolysis steam-exploded wheat straw. Both simulation and prediction results show Eq. (8) has much higher accuracy than Eq. (5). Analysis of initial hydrolysis rate is also in accordance with Eq. (8) and against Eq. (5). Fitted values of k(2) (the rate constant of product formation), k(de2) (the rate constant of enzyme deactivation) and K(e) (the equilibrium constant) determined from Eq. (8) are 0.4732 h(-1), 0.4011 L/(h g), and 16.8597 g/L, respectively. The higher the enzyme concentration is, the larger the deactivation rate.
关键词Cellulase Kinetics Enzyme Deactivation Mathematical Model Enzymatic Hydrolysis Of Cellulose Simulation And Prediction
学科领域Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2010.06.015
研究领域[WOS]Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
URL查看原文
关键词[WOS]COTTON GIN WASTE ; INDUCED INACTIVATION ; CORN STOVER ; OPTIMIZATION ; ETHANOL ; PRETREATMENT ; REACTOR
收录类别SCI
语种英语
项目资助者Chinese Academy of Sciences [KSCX-YW-11-A3, KGCX2-YW-335, KSCX2-YW-G-075-9]; National High Technology Research and Development Program of China (863 program) [2007AA05Z406, 2009AA05Z436]
WOS类目Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号WOS:000280570900035
引用统计
被引频次:52[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/8471
专题中国科学院广州能源研究所
生物质能源生化转化实验室
作者单位1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Yu,Xu, Jing-Liang,Xu, Hui-Juan,et al. Cellulase deactivation based kinetic modeling of enzymatic hydrolysis of steam-exploded wheat straw[J]. BIORESOURCE TECHNOLOGY,2010,101(21):8261-8266.
APA Zhang, Yu,Xu, Jing-Liang,Xu, Hui-Juan,Yuan, Zhen-Hong,&Guo, Ying.(2010).Cellulase deactivation based kinetic modeling of enzymatic hydrolysis of steam-exploded wheat straw.BIORESOURCE TECHNOLOGY,101(21),8261-8266.
MLA Zhang, Yu,et al."Cellulase deactivation based kinetic modeling of enzymatic hydrolysis of steam-exploded wheat straw".BIORESOURCE TECHNOLOGY 101.21(2010):8261-8266.
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