GIEC OpenIR  > 中国科学院广州能源研究所
A study of CO/syngas bioconversion by Clostridium autoethanogenum with a flexible gas-cultivation system
Xu, Huijuan1; Liang, Cuiyi1; Yuan, Zhenhong1; Xu, Jingliang1; Hua, Qiang2; Guo, Ying1
2017-06-01
Source PublicationENZYME AND MICROBIAL TECHNOLOGY
Volume101Pages:24-29
AbstractBioconversion of CO/syngas to produce ethanol is a novel route in bioethanol production, which can be accomplished by some acetogens. Specific culture vessels and techniques are needed to cultivate these microorganisms since they are anaerobic and substrates are gaseous. In this work, gas-sampling bag was applied as a gas-cultivation system to study CO/syngas bioconversion by Clostridium autoethanogenum and was demonstrated to be efficient because of its flexibility and excellent ability to maintain the headspace atmosphere. C autoethanogenum can use CO as the sole carbon and energy source to produce ethanol, acetate as well as CO2. In the experimental range, higher ethanol production was favored by higher yeast extract concentrations, and the maximum ethanol concentration of 3.45 g/L was obtained at 1.0 g/L of yeast extract. Study with various bottled gases showed that C. autoethanogenum preferred to use CO other than CO2 and produced the highest level of ethanol with 100% CO as the substrate. C. autoethanogenum can also utilize biomass-generated syngas (36.2% CO, 23.0% H-2, 15.4% CO2, 11.3% N-2), but the process proceeded slowly and insufficiently due to the presence of O-2 and C2H2. In our study, C. autoethanogenum showed a better performance in the bioconversion of CO to ethanol than Clostridium ljungdahlii, a strain which has been most studied, and for both strains, ethanol production was promoted by supplementing 0.5 g/L of acetate. (C) 2017 Elsevier Inc. All rights reserved.
SubtypeArticle
KeywordSyngas Fermentation Ethanol Gas-cultivation System Carbon Monoxide
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.enzmictec.2017.03.002
WOS Subject ExtendedBiotechnology & Applied Microbiology
WOS KeywordCARBON-MONOXIDE ; ETHANOL-PRODUCTION ; BIOLOGICAL PRODUCTION ; SYNGAS FERMENTATION ; ANAEROBIC BACTERIUM ; GASEOUS FUELS ; YEAST EXTRACT ; SP-NOV ; LJUNGDAHLII ; PRESSURE
Indexed BySCI
Language英语
Funding OrganizationNational High-tech RD Program(2015AA020202) ; Science & Technology Program of Guangzhou(201414100220) ; Open Funding Project of the State Key Laboratory of Bioreactor Engineering(20140PEN10) ; Fund of CAS Key Laboratory of Renewable Energy(y107j4)
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000401047200004
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14121
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou, Guangdong, Peoples R China
2.East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Xu, Huijuan,Liang, Cuiyi,Yuan, Zhenhong,et al. A study of CO/syngas bioconversion by Clostridium autoethanogenum with a flexible gas-cultivation system[J]. ENZYME AND MICROBIAL TECHNOLOGY,2017,101:24-29.
APA Xu, Huijuan,Liang, Cuiyi,Yuan, Zhenhong,Xu, Jingliang,Hua, Qiang,&Guo, Ying.(2017).A study of CO/syngas bioconversion by Clostridium autoethanogenum with a flexible gas-cultivation system.ENZYME AND MICROBIAL TECHNOLOGY,101,24-29.
MLA Xu, Huijuan,et al."A study of CO/syngas bioconversion by Clostridium autoethanogenum with a flexible gas-cultivation system".ENZYME AND MICROBIAL TECHNOLOGY 101(2017):24-29.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xu, Huijuan]'s Articles
[Liang, Cuiyi]'s Articles
[Yuan, Zhenhong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xu, Huijuan]'s Articles
[Liang, Cuiyi]'s Articles
[Yuan, Zhenhong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xu, Huijuan]'s Articles
[Liang, Cuiyi]'s Articles
[Yuan, Zhenhong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.