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Environ Sci Pollut Res Int

Title:		Microbial metabolism and health risk assessment of kitchen waste odor VOCs
Author(s):		He Z; Chen K; Huang C; Xin X; Tan H; Jiang J; Wu X; Zhai J;
Address:		"State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China. College of Environment and Ecology, Chongqing University, Chongqing, 400044, China. State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, China. hclsjb@163.com. College of Environment and Ecology, Chongqing University, Chongqing, 400044, China. hclsjb@163.com. Ecological and Environment Monitoring Center of Chongqing, Chongqing, 400010, China"
Journal Title:		Environ Sci Pollut Res Int
Year:		2023
Volume:		20230927
Issue:
Page Number:		-
DOI:		10.1007/s11356-023-30053-2
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"Kitchen waste (KW) generates odors comprising complex volatile organic compounds (VOCs). We used gas chromatography-mass spectrometry to analyze VOCs, and 16S gene sequencing was used to analyze the microbial community composition and microbial metabolic mechanism. The results showed that the major odor-causing VOCs were hydrogen sulfide, methanethiol, methyl sulfide, dimethyl disulfide, and ethyl acetate. As the temperature increased, the VOCs and microbial community composition became more complex, and the microbial community related to VOC production included Leuconostoc, Pediococcus, Acetobacter, and Weissella. Based on PICRUSt2 analysis, the possibility of typical VOC interconversion by microbial metabolism was low. It was more likely that precursor substances were catalyzed by enzymes to generate the corresponding VOCs. Attention should be given to trichloromethane and 1,2-dichloroethane, which may cause adverse health effects through long-term inhalation. The study results provide guidance for controlling VOCs from KW"
Keywords:		16S rRNA Kitchen waste PICRUSt2 Risk assessment VOCs;
Notes:		"PublisherHe, Zijun Chen, Kejin Huang, Chuan Xin, Xiaobu Tan, Hanyue Jiang, Jing Wu, Xiaoyan Zhai, Jinru eng 2019YFC1906104/National Key Research and Development Project of China/ Germany 2023/09/28 Environ Sci Pollut Res Int. 2023 Sep 27. doi: 10.1007/s11356-023-30053-2"