Revealing microbial community composition and disinfection efficacy evaluation in wholesale pork markets through 16S rDNA sequencing

文献类型： 外文期刊

第一作者： He, Miao

作者： He, Miao;Lan, Hangzhen;He, Miao;Ma, Lingyan;Lv, Wentao;Xiao, Yingping;Yang, Hua;Wang, Wen;Xiao, Xingning;Wang, Xiaofan;Zhao, Jiangchao;Wang, Wen;Xiao, Xingning

作者机构：

关键词： Pork; wholesaler; 16S rDNA amplicon sequencing; bacterial contamination; NaClO disinfection

期刊名称：CYTA-JOURNAL OF FOOD （ 影响因子：2.0； 五年影响因子：2.7 ）

ISSN： 1947-6337

年卷期： 2024 年 22 卷 1 期

页码：

收录情况： SCI

摘要： This study has employed 16S rDNA analysis to elucidate the characteristics of the microbial community in the surroundings, facilities, and meat samples collected from a pork wholesale market with the aim of revealing bacterial contamination. In addition, the efficacy of sodium hypochlorite disinfectant was assessed by comparing the bacterial communities in the viable samples before and after disinfection. The bacterial abundances in meat, chopping boards, and knives were positively correlated (r > 0.95, p < .05), suggesting potential cross-contamination risks during market transactions. The species richness indices for the external transport vehicles, pork hooks, and floors were significantly different from those of the samples taken after decontamination (p < .05). Linear discriminant analysis Effect Size (LEfSe) analyses showed that Firmicutes, Proteobacteria, and Chloroflexi were significantly more abundant in the transaction period, whereas Bacteroidetes levels decreased compared to the clean-up period. NaClO disinfection altered the composition of bacterial communities.

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