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Dynamic microwave-assisted alkali pretreatment of cornstalk to enhance hydrogen production via co-culture fermentation of Clostridium thermocellum and Clostridium thermosaccharolyticum
Alternative TitleBiomass Bioenerg.
Li, Qian1,2; Guo, Chen1; Liu, Chun-Zhao1
2014-05-01
Source PublicationBIOMASS & BIOENERGY
ISSN0961-9534
Volume64Issue:1Pages:220-229
AbstractA novel dynamic microwave-assisted alkali pretreatment (DMAP) of cornstalk (CS) was developed in a microwave pretreatment system, which resulted in the effective removal of lignin and an increased release of soluble compounds more accessible to microorganisms. The key factors affecting the pretreatment process were optimized for enhancing thermophilic hydrogen production by co-culture of Clostridium thermocellum and Clostridium thermosaccharolyticum. The hydrogen yield reached 105.61 mL g(-1) of CS when cornstalk was pretreated by DMAP for 45 mm with an alkali loading, a liquid/solid ratio and flow rate of 0.12 NaOH g(-1) of CS, 50:1 (mL:g) and 60 mL s(-1), respectively. This was 54.8% higher than that from the untreated cornstalk, with greatly increased hemicellulose and cellulose degradations ranging from approximately 41%-79.55% and 71.28%, respectively. The present work indicates that DMAP has the strong potential to significantly improve the conversion efficiency of lignocellulosic material to renewable biofuel. (C) 2014 Elsevier Ltd. All rights reserved.; A novel dynamic microwave-assisted alkali pretreatment (DMAP) of cornstalk (CS) was developed in a microwave pretreatment system, which resulted in the effective removal of lignin and an increased release of soluble compounds more accessible to microorganisms. The key factors affecting the pretreatment process were optimized for enhancing thermophilic hydrogen production by co-culture of Clostridium thermocellum and Clostridium thermosaccharolyticum. The hydrogen yield reached 105.61 mL g(-1) of CS when cornstalk was pretreated by DMAP for 45 mm with an alkali loading, a liquid/solid ratio and flow rate of 0.12 NaOH g(-1) of CS, 50:1 (mL:g) and 60 mL s(-1), respectively. This was 54.8% higher than that from the untreated cornstalk, with greatly increased hemicellulose and cellulose degradations ranging from approximately 41%-79.55% and 71.28%, respectively. The present work indicates that DMAP has the strong potential to significantly improve the conversion efficiency of lignocellulosic material to renewable biofuel. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordDynamic Microwave-assisted Alkali Pretreatment Cornstalk Bio-hydrogen Co-culture Thermophilic Fermentation
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biombioe.2014.03.053
URL查看原文
Indexed BySCI
Language英语
WOS KeywordBIOHYDROGEN PRODUCTION ; THERMOPHILIC FERMENTATION ; ENZYMATIC SACCHARIFICATION ; LIGNOCELLULOSIC FEEDSTOCK ; CORN STOVER ; WHEAT-STRAW ; RICE STRAW ; OPTIMIZATION ; HYDROLYSIS ; ACID
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000336778400021
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10927
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Dalian Polytech Univ, Sch Biol Engn, Dalian 116034, Peoples R China
Recommended Citation
GB/T 7714
Li, Qian,Guo, Chen,Liu, Chun-Zhao. Dynamic microwave-assisted alkali pretreatment of cornstalk to enhance hydrogen production via co-culture fermentation of Clostridium thermocellum and Clostridium thermosaccharolyticum[J]. BIOMASS & BIOENERGY,2014,64(1):220-229.
APA Li, Qian,Guo, Chen,&Liu, Chun-Zhao.(2014).Dynamic microwave-assisted alkali pretreatment of cornstalk to enhance hydrogen production via co-culture fermentation of Clostridium thermocellum and Clostridium thermosaccharolyticum.BIOMASS & BIOENERGY,64(1),220-229.
MLA Li, Qian,et al."Dynamic microwave-assisted alkali pretreatment of cornstalk to enhance hydrogen production via co-culture fermentation of Clostridium thermocellum and Clostridium thermosaccharolyticum".BIOMASS & BIOENERGY 64.1(2014):220-229.
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