Enhanced hydrogen and volatile fatty acid production from sweet sorghum stalks by two-steps dark fermentation with dilute acid treatment in between

doi:10.1016/j.ijhydene.2017.11.059

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	Enhanced hydrogen and volatile fatty acid production from sweet sorghum stalks by two-steps dark fermentation with dilute acid treatment in between
	Islam, Md. Saiful 1,2,4; Guo, Chen 1,2; Liu, Chun-Zhao 1,2,3
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2018-01-11
卷号	43 期号:2 页码:659-666
关键词	Two-step Fermentation Hydrogen Volatile Fatty Acid Sweet Sorghum Stalks Dilute Acid Treatment Biorefinery
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2017.11.059
文献子类	Article
英文摘要	This study investigated the potential of hydrogen and volatile fatty acid coproduction from two steps dark fermentation with dilute acid treatments of the residual slurry after 1st step fermentation. Sweet sorghum stalks (SS) was used as substrate along with Clostridium thermosaccharolyticum as production microbe. Residual lignocelluloses after 1st step fermentation were treated for 1 h by sulfuric acid concentration of 0.25, 0.5, 1.0, 1.5, 2.0 and 2.5% (w/v) with different reaction temperature of 120, 90 and 60 degrees C were studied. The optimum severity conditions for the highest yield of products found from the treatment acid concentration of 1.5% (w/v) at 120 degrees C for 10 g/L of substrate concentration. Experimental data showed that two-step fermentation increased 76% hydrogen, 84% acetic acid and 113% of butyric acid production from single step. Maximum yields of hydrogen, acetic acid and butyric acid were 5.77 mmol/g-substrate, 2.17 g/L and 2.07 g/L respectively. This two-step fermentation for hydrogen and VFA production using the whole slurry would be a promising approach to SS biorefinery. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
WOS关键词	LIGNOCELLULOSIC BIOMASS ; CLOSTRIDIUM-THERMOCELLUM ; BIOHYDROGEN PRODUCTION ; ENZYMATIC-HYDROLYSIS ; CELLULOSIC ETHANOL ; KEY FACTORS ; PRETREATMENT ; COCULTURE ; THERMOSACCHAROLYTICUM ; OPTIMIZATION
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
WOS记录号	WOS:000424309800011
资助机构	National Basic Research Program (973 Program) of China(2013CB733600) ; National Natural Science Foundation of China(21476242) ; National Key Technology Research and Development Program of China(2015BAK45B01) ; CAS-TWAS Presidents Fellowship
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/24025]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 3.Qingdao Univ, Sch Mat Sci & Engn, Collaborat Innovat Ctr Marine Biomass Fibers Mat, Qingdao 266071, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Islam, Md. Saiful,Guo, Chen,Liu, Chun-Zhao. Enhanced hydrogen and volatile fatty acid production from sweet sorghum stalks by two-steps dark fermentation with dilute acid treatment in between[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2018,43(2):659-666.
APA	Islam, Md. Saiful,Guo, Chen,&Liu, Chun-Zhao.(2018).Enhanced hydrogen and volatile fatty acid production from sweet sorghum stalks by two-steps dark fermentation with dilute acid treatment in between.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,43(2),659-666.
MLA	Islam, Md. Saiful,et al."Enhanced hydrogen and volatile fatty acid production from sweet sorghum stalks by two-steps dark fermentation with dilute acid treatment in between".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 43.2(2018):659-666.