Acclimation of acid-tolerant methanogenic propionate-utilizing culture and microbial community dissecting
文献类型：期刊论文
| 作者 | Li, Ying1 ; Sun, Yongming1,3; Li, Lianhua1,2; Yuan, Zhenhong1,2,3
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| 刊名 | BIORESOURCE TECHNOLOGY
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| 出版日期 | 2018-02-01 |
| 卷号 | 250页码:117-123 |
| 关键词 | Anaerobic digestion Propionate-utilizing culture Acid-tolerant Microbial community |
| ISSN号 | 0960-8524 |
| DOI | 10.1016/j.biortech.2017.11.034 |
| 通讯作者 | Li, Lianhua(lilh@ms.giec.ac.cn) |
| 英文摘要 | The acid-tolerant methanogenic propionate degradation culture was acclimated in a propionate-fed semi-continuous bioreactor by daily adjusting the digestate pH. The performance of propionate fermentation, the respond of microbial community structure to the acidic environment, and the microbial network for propionate degradation in the acid-tolerant culture was investigated. The results demonstrated that after long term of acclimation to low pH, the digester could produce methane from propionate at pH 4.8-5.5 with 0.3-0.4 L g(-1) propionic acid (HPr) d(-1) of the volatile solids (VS) methane production. The predominant methanogens shifted from acetoclastic methanogens (similar to 87%) to hydrogenotrophic methanogens (similar to 67%) in the bioreactor with the dropping pH, indicating that hydrogenotrophic methanogens were more acid-tolerant than acetoclastic methanogens. Smithella (similar to 11%), Syntrophobacter (similar to 7%) and Pelotomaculum (similar to 3%) were the main propionate oxidizers in the acid-tolerant propionate-utilizing culture. Methanothrix dominant acetoclastic methanogens, while Methanolinea and Methanospirillum were the major H-2 scavengers to support Syntrophobacter and Pelotomaculum syntrophic propionate degradation. |
| WOS关键词 | SULFATE-REDUCING BACTERIUM ; 16S RIBOSOMAL-RNA ; SP-NOV. ; OXIDIZING BACTERIUM ; ANAEROBIC DIGESTERS ; WASTE-WATER ; METHANOSPIRILLUM-HUNGATEI ; SMITHELLA-PROPIONICA ; UASB REACTORS ; FOOD WASTE |
| 资助项目 | National Nature Science Foundation of China[51708538] ; Natural Science Foundation of Guangdong Province[2017A030310443] ; High Technology Industrial Science and Technology Plan of Guangdong Province[2013B010204053] |
| WOS研究方向 | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000430740000015 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Nature Science Foundation of China ; Natural Science Foundation of Guangdong Province ; High Technology Industrial Science and Technology Plan of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/23195]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Lianhua |
| 作者单位 | 1.Chinese Acad Sci, GuangZhou Inst Energy Convers, Lab Biomass Biochem Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ying,Sun, Yongming,Li, Lianhua,et al. Acclimation of acid-tolerant methanogenic propionate-utilizing culture and microbial community dissecting[J]. BIORESOURCE TECHNOLOGY,2018,250:117-123. |
| APA | Li, Ying,Sun, Yongming,Li, Lianhua,&Yuan, Zhenhong.(2018).Acclimation of acid-tolerant methanogenic propionate-utilizing culture and microbial community dissecting.BIORESOURCE TECHNOLOGY,250,117-123. |
| MLA | Li, Ying,et al."Acclimation of acid-tolerant methanogenic propionate-utilizing culture and microbial community dissecting".BIORESOURCE TECHNOLOGY 250(2018):117-123. |
入库方式： OAI收割
来源：广州能源研究所
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