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Pretreatment of wheat straw by nonionic surfactant-assisted dilute acid for enhancing enzymatic hydrolysis and ethanol production
Qi, Benkun1,2; Chen, Xiangrong1; Wan, Yinhua1; Wan, YH
2010-07-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume101Issue:13Pages:4875-4883
AbstractPretreating wheat straw (WS) with combined use of varied sulfuric acid concentration (0-3%, w/v) and Tween 20 concentration (0-1%) was investigated in an attempt to enhance the hydrolysis and fermentability of pretreated WS. Enzymatic hydrolysis yield of glucan and xylan and ethanol production by simultaneous saccharification and fermentation (SSF) of water-insoluble solids (WIS) were significantly affected by the amount of Tween 20 added during acid pretreatment. Any further addition of Tween 20 in either hydrolysis stage or fermentation stage only led to small increase in glucan conversion and ethanol production. Determination of adsorption of cellulases during hydrolysis showed that Tween 20-assisted acid treated straw solution contained more free cellulases than individual acid treated straw solution, indicating that modification of lignin surface by Tween 20 added during pretreatment likely occurred. In addition, the effects of pretreatment conditions on overall recovery of glucose and xylose after pretreatment and enzymatic hydrolysis were also investigated. (C) 2010 Elsevier Ltd. All rights reserved.
KeywordSurfactant Acid Pretreatment Simultaneous Saccharification And Fermentation Ethanol
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2010.01.063
Indexed BySCI
Language英语
WOS KeywordCORN STOVER ; CELLULOSIC ETHANOL ; SULFURIC-ACID ; SACCHAROMYCES-CEREVISIAE ; LIGNOCELLULOSIC BIOMASS ; TRICHODERMA-REESEI ; DIGESTIBILITY ; FERMENTATION ; CELLULASE ; DETOXIFICATION
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000276867500015
Citation statistics
Cited Times:62[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6120
Collection生化工程国家重点实验室
Corresponding AuthorWan, YH
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Qi, Benkun,Chen, Xiangrong,Wan, Yinhua,et al. Pretreatment of wheat straw by nonionic surfactant-assisted dilute acid for enhancing enzymatic hydrolysis and ethanol production[J]. BIORESOURCE TECHNOLOGY,2010,101(13):4875-4883.
APA Qi, Benkun,Chen, Xiangrong,Wan, Yinhua,&Wan, YH.(2010).Pretreatment of wheat straw by nonionic surfactant-assisted dilute acid for enhancing enzymatic hydrolysis and ethanol production.BIORESOURCE TECHNOLOGY,101(13),4875-4883.
MLA Qi, Benkun,et al."Pretreatment of wheat straw by nonionic surfactant-assisted dilute acid for enhancing enzymatic hydrolysis and ethanol production".BIORESOURCE TECHNOLOGY 101.13(2010):4875-4883.
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