Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Acclimation of acid-tolerant methanogenic propionate-utilizing culture and microbial community dissecting | |
Li, Ying1 ; Sun, Yongming1,2; Li, Lianhua1,3; Yuan, Zhenhong1,2,3
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| 2018-02-01 | |
| Source Publication | BIORESOURCE TECHNOLOGY
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| ISSN | 0960-8524 |
| Volume | 250Pages:117-123 |
| Corresponding Author | Li, Lianhua(lilh@ms.giec.ac.cn) |
| Abstract | 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. |
| Keyword | Anaerobic digestion Propionate-utilizing culture Acid-tolerant Microbial community |
| DOI | 10.1016/j.biortech.2017.11.034 |
| WOS Keyword | SULFATE-REDUCING BACTERIUM ; 16S RIBOSOMAL-RNA ; SP-NOV. ; OXIDIZING BACTERIUM ; ANAEROBIC DIGESTERS ; WASTE-WATER ; METHANOSPIRILLUM-HUNGATEI ; SMITHELLA-PROPIONICA ; UASB REACTORS ; FOOD WASTE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| Funding Organization | National Nature Science Foundation of China ; Natural Science Foundation of Guangdong Province ; High Technology Industrial Science and Technology Plan of Guangdong Province |
| WOS Subject | Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels |
| WOS ID | WOS:000430740000015 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/23196 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Lianhua |
| Affiliation | 1.Chinese Acad Sci, GuangZhou Inst Energy Convers, Lab Biomass Biochem Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation 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. |
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