Increased fermentability of enzymatically hydrolyzed steam-exploded corn stover for butanol production by removal of fermentation inhibitors
文献类型：期刊论文
| 作者 | Wang, Lan; Chen, Hongzhang
|
| 刊名 | PROCESS BIOCHEMISTRY
 |
| 出版日期 | 2011-02-01 |
| 卷号 | 46期号:2页码:604-607 |
| 关键词 | Steam-exploded corn stover Butanol fermentation Activated charcoal Alkaline peroxide treatment Soluble lignin compounds |
| ISSN号 | 1359-5113 |
| 通讯作者 | Chen, HZ |
| 英文摘要 | Acetone-butanol-ethanol (ABE) production from enzymatically hydrolyzed steam-exploded corn stover (SECS) by Clostridium acetobutylicum ATCC 824 was investigated in this study. Two methods to reduce fermentation inhibitors and thus increase fermentability were developed. An ABE yield of 0.15 and a productivity of 0.05 g/(L h) were obtained in the SECS hydrolysate (SECSH). This was lower compared to the yield of 0.23 and the productivity of 0.15 g/(Lh) in the control medium containing 50 g/L mixed sugars. Based on the composition analysis of SECSH, soluble lignin compounds (SLC) were found to be the main fermentation inhibitors. The ABE fermentation was inhibited when SLC exceeded to 1.77 g/L in the SECSH-based medium. In contrast, fermentation was improved when SLC was less than 0.89 g/L To reduce the SLC concentration in SECSH, activated charcoal treatment was adopted to adsorb SLC from SECSH. To reduce inhibitor generation during the hydrolysis, alkaline peroxide treatment was used to remove the lignin from SECS. Batch fermentation of the two hydrolysates treated with the above methods resulted in an ABE yield of 0.30 and a productivity of 0.17 g/(L h). This indicates that the two established methods for the removal of inhibitors can enhance the fermentability of SECS in ABE production. (C) 2010 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering, Chemical |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering |
| 关键词[WOS] | CLOSTRIDIUM-BEIJERINCKII ; XYLITOL PRODUCTION ; ALKALINE PEROXIDE ; DETOXIFICATION ; ACETONE ; ACID ; WOOD |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000287274000026 |
| 公开日期 | 2013-11-08 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5249]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lan,Chen, Hongzhang. Increased fermentability of enzymatically hydrolyzed steam-exploded corn stover for butanol production by removal of fermentation inhibitors[J]. PROCESS BIOCHEMISTRY,2011,46(2):604-607. |
| APA | Wang, Lan,&Chen, Hongzhang.(2011).Increased fermentability of enzymatically hydrolyzed steam-exploded corn stover for butanol production by removal of fermentation inhibitors.PROCESS BIOCHEMISTRY,46(2),604-607. |
| MLA | Wang, Lan,et al."Increased fermentability of enzymatically hydrolyzed steam-exploded corn stover for butanol production by removal of fermentation inhibitors".PROCESS BIOCHEMISTRY 46.2(2011):604-607. |
入库方式： OAI收割
来源：过程工程研究所
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