Microbiome re-assembly boosts anaerobic digestion under volatile fatty acid inhibition: focusing on reactive oxygen species metabolism
文献类型：期刊论文
| 作者 | Yan, Miao2,3; Hu, Zhiyuan2; Duan, Zhenhan1; Sun, Yongming2; Dong, Taili3; Sun, Xianfa3; Zhen, Feng2; Li, Ying2,4 |
| 刊名 | WATER RESEARCH
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 246页码:9 |
| 关键词 | Food waste Anaerobic digestion Reactive oxygen species Microbiome re-assembly Overload |
| ISSN号 | 0043-1354 |
| DOI | 10.1016/j.watres.2023.120711 |
| 通讯作者 | Li, Ying(liying@ms.giec.ac.cn) |
| 英文摘要 | The accumulation of volatile fatty acids (VFAs) in anaerobic digestion (AD) systems resulting from food waste overload poses a risk of system collapse. However, limited understanding exists regarding the inhibitory mechanisms and effective strategies to address VFAs-induced stress. This study found that accumulated VFAs exert reactive oxygen species (ROS) stress on indigenous microbiota, particularly impacting methanogens due to their lower antioxidant capability compared to bacteria, which is supposed to be the primary reason for methanogenesis failure. To enhance the VFAs-stressed AD process, microbiome re-assembly using customized propionate-degrading consortia and bioaugmentation with concentrated digestate were implemented. Microbiome re-assembly demonstrated superior efficiency, yielding an average methane yield of 563.6 +/- 159.8 mL/L & sdot;d and reducing VFAs to undetectable levels for a minimum of 80 days. This strategy improved the abundance of Syntrophomonas, Syntrophobacter and Methanothrix, alleviating ROS stress. Conversely, microbial community in reactor with other strategy experienced an escalating intracellular damage, as indicated by the increase of ROS generation-related genes. This study fills knowledge gaps in stress-related metabolic mechanisms of anaerobic microbiomes exposed to VFAs and microbiome re-assembly to boost methanogenesis process. |
| WOS关键词 | TRANSPORTER ; STRESS |
| 资助项目 | National Natural Science Foundation of China[52170143] ; National Natural Science Foundation of China[52300180] ; Guangzhou Science and Technology project[2021A1515012082] ; China Post-doctoral Science Foundation[2023M733509] ; Technological Project of Heilongjiang Province[2022ZXJ05C01] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:001098607200001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Guangzhou Science and Technology project ; China Post-doctoral Science Foundation ; Technological Project of Heilongjiang Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/40166]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Ying |
| 作者单位 | 1.Minist Ecol & Environm, South China Inst Environm Sci, Guangzhou 510655, Guangdong, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Lab Biomass Biochem Convers, Guangzhou 510640, Peoples R China 3.Shandong Minhe Biotechnol Co Ltd, Yantai, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Miao,Hu, Zhiyuan,Duan, Zhenhan,et al. Microbiome re-assembly boosts anaerobic digestion under volatile fatty acid inhibition: focusing on reactive oxygen species metabolism[J]. WATER RESEARCH,2023,246:9. |
| APA | Yan, Miao.,Hu, Zhiyuan.,Duan, Zhenhan.,Sun, Yongming.,Dong, Taili.,...&Li, Ying.(2023).Microbiome re-assembly boosts anaerobic digestion under volatile fatty acid inhibition: focusing on reactive oxygen species metabolism.WATER RESEARCH,246,9. |
| MLA | Yan, Miao,et al."Microbiome re-assembly boosts anaerobic digestion under volatile fatty acid inhibition: focusing on reactive oxygen species metabolism".WATER RESEARCH 246(2023):9. |
入库方式： OAI收割
来源：广州能源研究所
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