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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. Saiful1,2,4; Guo, Chen1,2; Liu, Chun-Zhao1,2,3
2018-01-11
发表期刊INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
卷号43期号:2页码:659-666
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.
关键词Two-step Fermentation Hydrogen Volatile Fatty Acid Sweet Sorghum Stalks Dilute Acid Treatment Biorefinery
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2017.11.059
收录类别SCI
语种英语
关键词[WOS]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
WOS类目Chemistry, Physical ; Electrochemistry ; Energy & Fuels
项目资助者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
WOS记录号WOS:000424309800011
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24025
专题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
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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.
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