Metagenomic analysis reveals the microbial degradation mechanism during kitchen waste biodrying
文献类型：期刊论文
| 作者 | Cai, Lu1; Guo, Han-Tong2; Zheng, Guo-Di2; Wang, Xin-Yu1; Wang, Kan1 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 307页码:10 |
| ISSN号 | 0045-6535 |
| 关键词 | Kitchen waste biodrying Metagenomic Functional microorganisms Organic matter degradation Metabolic functions |
| DOI | 10.1016/j.chemosphere.2022.135862 |
| 通讯作者 | Wang, Kan(wangkan@nbu.edu.cn) |
| 英文摘要 | Biodrying is a treatment to remove moisture using bio-heat generated during organic degradation. Organic matter degradation and microbial metabolism were studied during the whole kitchen waste biodrying, using metagenomic analysis. After the 25-day biodrying process, carbohydrate, protein and lipid contents decreased by 83.7%, 27.8% and 79.3%, respectively, and their degradation efficiencies increased after the thermophilic phase. Lipase activity exceeded 10 mmol d(-1) g(-1) throughout biodrying. Cellulase and lipase activities recovered by 2.21% and 5.77%, respectively, after the thermophilic phase, while the protease activity had a maximum increment of 347%. Metabolic analysis revealed that carbohydrate, amino acid and lipid metabolism was possibly inhibited by the high temperature, but the relative abundances of related predicted functions recovered by more than 0.9%, 7% and 11%, respectively, by the end of biodrying. Protein function prediction suggests that beta-oxidation, fatty acid biosynthesis, and the degradation of cellulose and chitin were possibly enhanced during the thermophilic phase. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed that leucine, isoleucine and lysine could ultimately degraded to acetyl-CoA. Weissella, Aeribacillus and Bacillus were the genera with the most enriched functional genes during the whole biodrying process. These findings help elucidate the microbial degradation processes during biodrying, which provides further scientific support for improving the application of biodrying products. |
| WOS关键词 | SLUDGE ; COMMUNITY ; NITROGEN |
| 资助项目 | National Natural Science Foundation of China[52070102] ; Public Welfare Technology Application Research Project of Zhejiang Province[LGF20E080011] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000846629500006 |
| 资助机构 | National Natural Science Foundation of China ; Public Welfare Technology Application Research Project of Zhejiang Province |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/182424]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Kan |
| 作者单位 | 1.Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315211, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cai, Lu,Guo, Han-Tong,Zheng, Guo-Di,et al. Metagenomic analysis reveals the microbial degradation mechanism during kitchen waste biodrying[J]. CHEMOSPHERE,2022,307:10. |
| APA | Cai, Lu,Guo, Han-Tong,Zheng, Guo-Di,Wang, Xin-Yu,&Wang, Kan.(2022).Metagenomic analysis reveals the microbial degradation mechanism during kitchen waste biodrying.CHEMOSPHERE,307,10. |
| MLA | Cai, Lu,et al."Metagenomic analysis reveals the microbial degradation mechanism during kitchen waste biodrying".CHEMOSPHERE 307(2022):10. |
入库方式： OAI收割
来源：地理科学与资源研究所
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