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Periodic peristalsis increasing acetone-butanol-ethanol productivity during simultaneous saccharification and fermentation of steam-exploded corn straw
Li, Jingwen1,2; Wang, Lan1; Chen, Hongzhang1
2016-11-01
Source PublicationJOURNAL OF BIOSCIENCE AND BIOENGINEERING
ISSN1389-1723
Volume122Issue:5Pages:620-626
Abstract

The acetone-butanol-ethanol (ABE) fermentation of lignocellulose at high solids content has recently attracted extensive attention. However, the productivity of high solids ABE fermentation of lignocellulose is typically low in traditional processes due to the lack of efficient intensifying methods. In the present study, periodic peristalsis, a novel intensifying method, was applied to improve ABE production by the simultaneous saccharification and fermentation (SSF) of steam-exploded corn straw using Clostridium acetobutylicum ATCC824. The ABE concentration and the ABE productivity of SSF at a solids content of 17.5% (w/w) with periodic peristalsis were 17.1 g/L and 020 g/(L h), respectively, which were higher than those obtained under static conditions (15.2 g/L and 0.14 g/(L h)). The initial sugar conversion rate over the first 12 h with periodic peristalsis was 4.67 g/(L h) at 10 FPU/g cellulase dosage and 15% (w/w) solids content, an increase of 49.7% compared with the static conditions. With periodic peristalsis, the period of batch fermentation was shortened from 108 h to 84 h. The optimal operating regime was a low frequency (6 h(-1)) of periodic peristalsis in the acid-production phase (0-48 h) of SSF. Therefore, periodic peristalsis should be an effective intensifying method to increase the productivity of ABE fermentation at high solids content. 2016, The Society for Biotechnology, Japan. All rights reserved.

KeywordAcetone-butanol-ethanol Fermentation Periodic Peristalsis Lignocellulose Bioconversion Simultaneous Saccharification And Fermentation High Solids Content Steam Explosion Corn Straw
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jbiosc.2016.04.009
Indexed BySCI
Language英语
WOS KeywordENZYMATIC-HYDROLYSIS ; CLOSTRIDIUM-BEIJERINCKII ; WHEAT-STRAW ; STOVER ; BIOMASS ; LIGNOCELLULOSE ; ACETOBUTYLICUM ; MECHANISMS ; INHIBITORS ; EFFICIENCY
WOS Research AreaBiotechnology & Applied Microbiology ; Food Science & Technology
WOS SubjectBiotechnology & Applied Microbiology ; Food Science & Technology
Funding OrganizationNational High Technology Research and Development Program of China (863 Program)(2012AA021302) ; Open Funding Project of the National Key Laboratory of Biochemical Engineering of China(2013KF-01)
WOS IDWOS:000389098700017
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21835
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li, Jingwen,Wang, Lan,Chen, Hongzhang. Periodic peristalsis increasing acetone-butanol-ethanol productivity during simultaneous saccharification and fermentation of steam-exploded corn straw[J]. JOURNAL OF BIOSCIENCE AND BIOENGINEERING,2016,122(5):620-626.
APA Li, Jingwen,Wang, Lan,&Chen, Hongzhang.(2016).Periodic peristalsis increasing acetone-butanol-ethanol productivity during simultaneous saccharification and fermentation of steam-exploded corn straw.JOURNAL OF BIOSCIENCE AND BIOENGINEERING,122(5),620-626.
MLA Li, Jingwen,et al."Periodic peristalsis increasing acetone-butanol-ethanol productivity during simultaneous saccharification and fermentation of steam-exploded corn straw".JOURNAL OF BIOSCIENCE AND BIOENGINEERING 122.5(2016):620-626.
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