Adaption of microbial community during the start-up stage of a thermophilic anaerobic digester treating food waste

文献类型： 外文期刊

第一作者： Wang, Xing

作者： Wang, Xing;Deng, Ya-Yue;Li, Zheng-Wei;Li, Qiang;Qin, Han;Chen, Jing-Tao;He, Ming-Xiong;Zhang, Min;Hu, Guo-Quan;Yin, Xiao-Bo;Wang, Xing;Li, Zheng-Wei;Chen, Jing-Tao;He, Xiao-Lan

作者机构：

关键词： start-up; thermophilic anaerobic digestion; microbial community dynamics; 16S rRNA high-throughput sequencing; food waste

期刊名称：BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY （ 影响因子：2.043； 五年影响因子：2.017 ）

ISSN： 0916-8451

年卷期： 2016 年 80 卷 10 期

页码：

收录情况： SCI

摘要： A successful start-up enables acceleration of anaerobic digestion (AD) into steady state. The microbial community influences the AD performance during the start-up. To investigate how microbial communities changed during the start-up, microbial dynamics was analyzed via high-throughput sequencing in this study. The results confirmed that the AD was started up within 25d. Thermophilic methanogens and bacterial members functioning in hydrolysis, acidogenesis, and syntrophic oxidation became predominant during the start-up stage, reflecting a quick adaption of microorganisms to operating conditions. Such predominance also indicated the great contribution of these members to the fast start-up of AD. Redundancy analysis confirmed that the bacterial abundance significantly correlated with AD conditions. The stable ratio of hydrogenotrophic methanogens to aceticlastic methanogens is also important to maintain the stability of the AD process. This work will be helpful to understand the contribution of microbial community to the start-up of AD.

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