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Improving Aerobic Digestion of Food Waste by Adding a Personalized Microbial Inoculum.
Han, Ying; Zhang, Yuman; Yang, Zijian; Zhang, Qingrui; He, Xin; Song, Yu; Tian, Lili; Wu, Hao.
Afiliación
  • Han Y; School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China. hanying@ysu.edu.cn.
  • Zhang Y; Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China. hanying@ysu.edu.cn.
  • Yang Z; School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China.
  • Zhang Q; School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China.
  • He X; School of Environmental and Chemical Engineering, YanShan University, 438# West Hebei Street, Haigang District, Qinhuangdao, 066004, Hebei, P.R. China.
  • Song Y; Hebei Province Key Laboratory of Deep Remediation of Heavy Metals in Water and Resource Utilization, YanShan University, Qinhuangdao, 066004, Hebei, P.R. China.
  • Tian L; Hebei Key Laboratory of Agroecological Safety, Hebei University of Environmental Engineering, Qinhuangdao, 066102, Hebei, P.R. China.
  • Wu H; Hebei Key Laboratory of Agroecological Safety, Hebei University of Environmental Engineering, Qinhuangdao, 066102, Hebei, P.R. China.
Curr Microbiol ; 81(9): 277, 2024 Jul 19.
Article en En | MEDLINE | ID: mdl-39028528
ABSTRACT
In the context of China's garbage classification policy, on-site aerobic food waste (FW) digestion is crucial for reducing transportation and disposal costs. The efficiency of this process is largely determined by the microbial community structure and its functions. Therefore, this study aimed to analyze the impact of a personalized microbial consortium (MCM) on the efficiency of aerobic FW digestion and to reveal the underlying mechanisms. An MCM, sourced from naturally degrading FW, was selected to enrich degrading bacteria with relatively high hydrolyzing ability. The functionality of the MCM was evaluated by tracing the successions of microbial communities, and comparing the differences in the forms of organic compounds, metabolic functions, and hydrolase activities. X-ray photoelectron spectroscopy demonstrated that the MCM metabolized faster, and produced more acidic metabolites. Metagenomic analysis indicated that FW inoculated with the personalized MCM increased abundance of Bacillaceae producing hydrolysis enzymes and promoted glycolysis metabolic pathways, enhancing energy generation for metabolism, compared to the commercial effective bacterial agent. This paper provides both theoretical and practical evidence for the improvement of biochemical processor of FW with the personalized MCM, which has promising application prospects and economic value.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacterias País/Región como asunto: Asia Idioma: En Revista: Curr Microbiol Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Bacterias País/Región como asunto: Asia Idioma: En Revista: Curr Microbiol Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos