A study of CO/syngas bioconversion by Clostridium autoethanogenum with a flexible gas-cultivation system
文献类型：期刊论文
| 作者 | Xu, Huijuan1 ; Liang, Cuiyi1; Yuan, Zhenhong1; Xu, Jingliang1; Hua, Qiang2; Guo, Ying1
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| 刊名 | ENZYME AND MICROBIAL TECHNOLOGY
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 101页码:24-29 |
| 关键词 | Syngas Fermentation Ethanol Gas-cultivation System Carbon Monoxide |
| DOI | 10.1016/j.enzmictec.2017.03.002 |
| 文献子类 | Article |
| 英文摘要 | Bioconversion 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. |
| WOS关键词 | CARBON-MONOXIDE ; ETHANOL-PRODUCTION ; BIOLOGICAL PRODUCTION ; SYNGAS FERMENTATION ; ANAEROBIC BACTERIUM ; GASEOUS FUELS ; YEAST EXTRACT ; SP-NOV ; LJUNGDAHLII ; PRESSURE |
| 语种 | 英语 |
| WOS记录号 | WOS:000401047200004 |
| 资助机构 | National 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) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/14121]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：广州能源研究所
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