文献类型：期刊文献

英文题名：Thermophilic microbiome acclimation for enhanced anaerobic digestion of food waste: Optimization and performance evaluation

作者：Shao, Hengxuan[1];Yuan, Chunle[1];Qiang, Jingwen[1];Hua, Wei[1,2];Cheng, Yanling[1,2];Wang, Wanqing[1,2]

第一作者：Shao, Hengxuan

通讯作者：Wang, WQ[1];Wang, WQ[2]

机构：[1]Beijing Union Univ, Biochem Engn Coll, Beijing, Peoples R China;[2]Beijing Key Lab Biomass Waste Resource Utilizat, Beijing, Peoples R China

第一机构：北京联合大学生物化学工程学院

通讯机构：[1]corresponding author), Beijing Union Univ, Biochem Engn Coll, Beijing, Peoples R China;[2]corresponding author), Beijing Key Lab Biomass Waste Resource Utilizat, Beijing, Peoples R China.|[1141726]北京联合大学生物化学工程学院;[11417]北京联合大学;

年份：2025

卷号：20

期号：11

外文期刊名：PLOS ONE

收录：;Scopus(收录号：2-s2.0-105021267390);WOS:【SCI-EXPANDED(收录号:WOS:001613721700047)】；

基金：The study was supported by the National Key Research and Development Program of China (Grant No. 2022YFC3902400).

语种：英文

摘要：Thermophilic anaerobic digestion (TAD) represents a promising approach for food waste (FW) treatment, offering significant advantages including accelerated reaction rates and increased volumetric biogas yield. However, the practical application of TAD is hindered by both the limited availability of thermophilic methanogenic consortia and heightened sensitivity to organic loading rate (OLR) fluctuations. In this study, a two-stage temperature shift strategy from mesophilic to thermophilic was implemented to establish a stable methanogenic community. The results showed that daily biogas yield increased steadily with rising fermentation temperature, reaching to a peak of 671.2 ml at 55 degrees C, which were 60.8% higher than that of mesophilic digestion. Microbial community analysis revealed that TAD increased the abundance of dominant hydrolytic bacteria (e.g., Defluviitoga) and hydrogenotrophic methanogen (e.g., Methanoculleus), consequently enhancing biogas production efficiency. Moreover, gradually increasing the OLR from 1.5 to 4 g VS/(Ld) significantly enhanced both biogas production and CH4 content, achieving a peak daily biogas yield of 2264.8 ml with sustained CH4 concentration stability (72-76%).