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pH pre-corrected liquid hot water pretreatment on corn stover with high hemicellulose recovery and low inhibitors formation
Alternative TitleBioresour. Technol.
Li, Hong-Qiang1; Jiang, Wei1; Jia, Jing-Xia2; Xu, Jian1
2014-02-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume153Issue:1Pages:292-299
AbstractA challenge for lignocellulosic pretreatment is how to retain hemicellulose as much as possible. To reduce the degradation of hemicellulose and increase the recovery of sugars, an effective pH pre-corrected liquid hot water pretreatment (LHWP) was developed by employing a small amount of NaOH (<= 5/100 g substrate) to accelerate the hemicellulose deacetylation and simultaneously pre-correct the acid hydrolyzate in situ. The results showed that the pH pre-correction can control the hydrolyzate pH. Under the pretreatment severity (PS) of 4.0, the pH pre-corrected LHWP reduced the hemicellulose degradation by 35.3-92.3%, decreased furfural formation by 90.5-99.8%. The highest hemicellulose recovery of 96.38% was obtained with pH pre-corrected by 2 g NaOH/100 g substrate. Enzymatic hydrolysis (EH) and simultaneous saccharification and fermentation (SSF) on the whole slurry from the pH pre-corrected LHWP showed that the hemicellulose retained in the solid residue did not bring significant resistance to cellulose EH (p = 0.837). (C) 2013 Elsevier Ltd. All rights reserved.; A challenge for lignocellulosic pretreatment is how to retain hemicellulose as much as possible. To reduce the degradation of hemicellulose and increase the recovery of sugars, an effective pH pre-corrected liquid hot water pretreatment (LHWP) was developed by employing a small amount of NaOH (<= 5/100 g substrate) to accelerate the hemicellulose deacetylation and simultaneously pre-correct the acid hydrolyzate in situ. The results showed that the pH pre-correction can control the hydrolyzate pH. Under the pretreatment severity (PS) of 4.0, the pH pre-corrected LHWP reduced the hemicellulose degradation by 35.3-92.3%, decreased furfural formation by 90.5-99.8%. The highest hemicellulose recovery of 96.38% was obtained with pH pre-corrected by 2 g NaOH/100 g substrate. Enzymatic hydrolysis (EH) and simultaneous saccharification and fermentation (SSF) on the whole slurry from the pH pre-corrected LHWP showed that the hemicellulose retained in the solid residue did not bring significant resistance to cellulose EH (p = 0.837). (C) 2013 Elsevier Ltd. All rights reserved.
KeywordPh Pre-corrected Liquid Hot Water Pretreatment Hemicellulose Oligosaccharide Furfural Acetyl Group
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2013.11.089
URL查看原文
Indexed BySCI
Language英语
WOS KeywordDILUTE-ACID PRETREATMENT ; LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; THERMOCHEMICAL PRETREATMENT ; ALKALINE PRETREATMENT ; CELLULOSE HYDROLYSIS ; ETHANOL-PRODUCTION ; OPTIMIZATION ; SACCHARIFICATION ; DEACETYLATION
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000331461000039
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8162
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.Chinese Acad Agr Mechanizat Sci MENOBLE Co Ltd, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Li, Hong-Qiang,Jiang, Wei,Jia, Jing-Xia,et al. pH pre-corrected liquid hot water pretreatment on corn stover with high hemicellulose recovery and low inhibitors formation[J]. BIORESOURCE TECHNOLOGY,2014,153(1):292-299.
APA Li, Hong-Qiang,Jiang, Wei,Jia, Jing-Xia,&Xu, Jian.(2014).pH pre-corrected liquid hot water pretreatment on corn stover with high hemicellulose recovery and low inhibitors formation.BIORESOURCE TECHNOLOGY,153(1),292-299.
MLA Li, Hong-Qiang,et al."pH pre-corrected liquid hot water pretreatment on corn stover with high hemicellulose recovery and low inhibitors formation".BIORESOURCE TECHNOLOGY 153.1(2014):292-299.
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