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Optimization of microwave-assisted calcium chloride pretreatment of corn stover
Li, Hongqiang; Xu, Jian
2013
Source PublicationBIORESOURCE TECHNOLOGY
Volume127Issue:0Pages:112-118
AbstractA 62.5% (w/w) CaCl2 solution was used in the microwave pretreatment of corn stover. The central composite design (CCD) of response surface methodology (RSM) was employed to design and optimize the CaCl2-assisted microwave pretreatment (CaCl2-pretreatment). Temperature and time were the main factors affecting the enzymatic digestibility of corn stover. After CaCl2-pretreatment, hemicellulose degradation reached 85.90%, the specific surface area (SSA) increased by 168.93%, cellulose crystallinity index (CrI) decreased by 13.91% compared to untreated corn stover. The optimal conditions for glucose production with the CaCl2-pretreatment obtained by CCD were, 162.1 degrees C, 12 min and solid-to-liquid ratio 10% (w/v). Under these conditions, the enzymatic hydrolysis ratio of cellulose was 90.66% and glucose recovery was 65.47%. This novel process achieved the temperature of about 160 degrees C necessary for lignocellulose pretreatment under atmospheric pressure using the cheap calcium chloride as the heating medium. (C) 2012 Elsevier Ltd. All rights reserved.
KeywordCalcium Chloride Microwave Pretreatment Corn Stover Central Composite Design Enzymatic Digestibility
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Indexed BySCI
Language英语
WOS KeywordDILUTE-ACID PRETREATMENT ; ENZYMATIC-HYDROLYSIS ; LIGNOCELLULOSIC WASTES ; STRAW ; SACCHARIFICATION ; DETOXIFICATION ; DIGESTIBILITY ; ENHANCEMENT ; CELLULOSE ; FEATURES
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000312926400015
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13732
Collection研究所(批量导入)
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Hongqiang,Xu, Jian. Optimization of microwave-assisted calcium chloride pretreatment of corn stover[J]. BIORESOURCE TECHNOLOGY,2013,127(0):112-118.
APA Li, Hongqiang,&Xu, Jian.(2013).Optimization of microwave-assisted calcium chloride pretreatment of corn stover.BIORESOURCE TECHNOLOGY,127(0),112-118.
MLA Li, Hongqiang,et al."Optimization of microwave-assisted calcium chloride pretreatment of corn stover".BIORESOURCE TECHNOLOGY 127.0(2013):112-118.
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