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Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment
Islam, Md Saiful1,2,3,4; Zhang, Zeju1; Qu, Song-Ben1; Liu, Chun-Lei1; Guo, Chen2,3; Liu, Chun-Zhao1,2,3
2021-02-01
Source PublicationBIOMASS & BIOENERGY
ISSN0961-9534
Volume145Pages:8
AbstractCoproduction of H-2 and volatile fatty acids from sweet sorghum stalks was successfully developed via two-step fermentation process involving alkaline and enzymatic treatment of the residual slurry obtained from the first step fermentation of the raw material. The optimum treatment conditions to obtain the highest yield of the end products included 2% (w/v) alkali at 120 degrees C for the residual slurry and 32 FPU cellulase per gram of the alkali-treated materials. The two-step fermentation using Clostridium thermosaccharolyticum increased the end product yields of H-2 (6.37 mmol/g-substrate) by 95%, acetic acid (2.33 g/L) by 97% and butyric acid (2.36 g/L) by 143% compared with those obtained in the single step fermentation without any treatment. As a result, the H-2 energy recovery efficiency of the two-step fermentation process with commercially attractive butyric acid as a coproduct reached 10.54%. These results provide a promising approach for sweet sorghum biorefining.
KeywordTwo-step fermentation H-2 Volatile fatty acids Alkaline and enzymatic treatment Acetic acid Butyric acid
DOI10.1016/j.biombioe.2020.105923
Language英语
Funding ProjectState Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) ; Key Research and Development Project of Shandong Province[2019GSF109079] ; National Basic Research Program (973 Program) of China[2013CB733600] ; Qingdao Key Health Discipline Development Fund ; CAS-TWAS
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
Funding OrganizationState Key Laboratory of Bio-Fibers and Eco-Textiles (Qingdao University) ; Key Research and Development Project of Shandong Province ; National Basic Research Program (973 Program) of China ; Qingdao Key Health Discipline Development Fund ; CAS-TWAS
WOS IDWOS:000618053500008
PublisherPERGAMON-ELSEVIER SCIENCE LTD
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43472
Collection中国科学院过程工程研究所
Corresponding AuthorQu, Song-Ben; Liu, Chun-Zhao
Affiliation1.Qingdao Univ, Affiliated Qingdao Cent Hosp, Coll Mat Sci & Engn, State Key Lab Biofibers & Ecotext,Inst Biochem En, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
4.Bangladesh Council Sci & Ind Res, Inst Fuel Res & Dev, Dhaka 1205, Bangladesh
Recommended Citation
GB/T 7714
Islam, Md Saiful,Zhang, Zeju,Qu, Song-Ben,et al. Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment[J]. BIOMASS & BIOENERGY,2021,145:8.
APA Islam, Md Saiful,Zhang, Zeju,Qu, Song-Ben,Liu, Chun-Lei,Guo, Chen,&Liu, Chun-Zhao.(2021).Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment.BIOMASS & BIOENERGY,145,8.
MLA Islam, Md Saiful,et al."Coproduction of hydrogen and volatile fatty acids via integrated two-step fermentation of sweet sorghum stalks by alkaline and enzymatic treatment".BIOMASS & BIOENERGY 145(2021):8.
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