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Changes in plant cell-wall structure of corn stover due to hot compressed water pretreatment and enhanced enzymatic hydrolysis
Alternative TitleWorld J. Microbiol. Biotechnol.
Zhou, Wei1,2; Yang, Maohua1; Wang, Caixia1,2; Liu, Jianfei1,2; Xing, Jianmin1
2014-08-01
Source PublicationWORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
ISSN0959-3993
Volume30Issue:8Pages:2325-2333
AbstractCorn stover is a potential feedstock for biofuel production. This work investigated physical and chemical changes in plant cell-wall structure of corn stover due to hot compressed water (HCW) pretreatment at 170-190 A degrees C in a tube reactor. Chemical composition analysis showed the soluble hemicellulose content increased with pretreatment temperature, whereas the hemicellulose content decreased from 29 to 7 % in pretreated solids. Scanning electron microscopy revealed the parenchyma-type second cell-wall structure of the plant was almost completely removed at 185 A degrees C, and the sclerenchyma-type second cell wall was greatly damaged upon addition of 5 mmol/L ammonium sulfate during HCW pretreatment. These changes favored accessibility for enzymatic action. Enzyme saccharification of solids by optimized pretreatment with HCW at 185 A degrees C resulted in an enzymatic hydrolysis yield of 87 %, an enhancement of 77 % compared to the yield from untreated corn stover.; Corn stover is a potential feedstock for biofuel production. This work investigated physical and chemical changes in plant cell-wall structure of corn stover due to hot compressed water (HCW) pretreatment at 170-190 A degrees C in a tube reactor. Chemical composition analysis showed the soluble hemicellulose content increased with pretreatment temperature, whereas the hemicellulose content decreased from 29 to 7 % in pretreated solids. Scanning electron microscopy revealed the parenchyma-type second cell-wall structure of the plant was almost completely removed at 185 A degrees C, and the sclerenchyma-type second cell wall was greatly damaged upon addition of 5 mmol/L ammonium sulfate during HCW pretreatment. These changes favored accessibility for enzymatic action. Enzyme saccharification of solids by optimized pretreatment with HCW at 185 A degrees C resulted in an enzymatic hydrolysis yield of 87 %, an enhancement of 77 % compared to the yield from untreated corn stover.
KeywordHcw Pretreatment Cell-wall Changes Ammonium Sulfate Enzymatic Hydrolysis
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s11274-014-1651-y
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSUPERCRITICAL WATER ; ACID PRETREATMENT ; LIQUID WATER ; BIOMASS ; CELLULOSE ; RECOVERY ; GLUCOSE ; STRAW ; BATCH ; SACCHARIFICATION
WOS Research AreaBiotechnology & Applied Microbiology
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000338557300021
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11060
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.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Wei,Yang, Maohua,Wang, Caixia,et al. Changes in plant cell-wall structure of corn stover due to hot compressed water pretreatment and enhanced enzymatic hydrolysis[J]. WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,2014,30(8):2325-2333.
APA Zhou, Wei,Yang, Maohua,Wang, Caixia,Liu, Jianfei,&Xing, Jianmin.(2014).Changes in plant cell-wall structure of corn stover due to hot compressed water pretreatment and enhanced enzymatic hydrolysis.WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY,30(8),2325-2333.
MLA Zhou, Wei,et al."Changes in plant cell-wall structure of corn stover due to hot compressed water pretreatment and enhanced enzymatic hydrolysis".WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY 30.8(2014):2325-2333.
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