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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
发表期刊JOURNAL OF BIOSCIENCE AND BIOENGINEERING
ISSN1389-1723
卷号122期号:5页码:620-626
摘要

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.

关键词Acetone-butanol-ethanol Fermentation Periodic Peristalsis Lignocellulose Bioconversion Simultaneous Saccharification And Fermentation High Solids Content Steam Explosion Corn Straw
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.jbiosc.2016.04.009
收录类别SCI
语种英语
关键词[WOS]ENZYMATIC-HYDROLYSIS ; CLOSTRIDIUM-BEIJERINCKII ; WHEAT-STRAW ; STOVER ; BIOMASS ; LIGNOCELLULOSE ; ACETOBUTYLICUM ; MECHANISMS ; INHIBITORS ; EFFICIENCY
WOS研究方向Biotechnology & Applied Microbiology ; Food Science & Technology
WOS类目Biotechnology & Applied Microbiology ; Food Science & Technology
项目资助者National 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记录号WOS:000389098700017
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21835
专题生化工程国家重点实验室
作者单位1.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
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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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