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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
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume43Issue:2Pages:659-666
AbstractThis 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.
KeywordTwo-step Fermentation Hydrogen Volatile Fatty Acid Sweet Sorghum Stalks Dilute Acid Treatment Biorefinery
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2017.11.059
Indexed BySCI
Language英语
WOS KeywordLIGNOCELLULOSIC BIOMASS ; CLOSTRIDIUM-THERMOCELLUM ; BIOHYDROGEN PRODUCTION ; ENZYMATIC-HYDROLYSIS ; CELLULOSIC ETHANOL ; KEY FACTORS ; PRETREATMENT ; COCULTURE ; THERMOSACCHAROLYTICUM ; OPTIMIZATION
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
Funding OrganizationNational 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 IDWOS:000424309800011
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/24025
Collection生化工程国家重点实验室
Affiliation1.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
Recommended Citation
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.
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