Revealing microbial community composition and disinfection efficacy evaluation in wholesale pork markets through 16S rDNA sequencing
文献类型： 外文期刊
作者： He, Miao 1 ; Ma, Lingyan 2 ; Lv, Wentao 2 ; Xiao, Yingping 2 ; Yang, Hua 2 ; Wang, Xiaofan 3 ; Zhao, Jiangchao 3 ; Lan, Hangzhen 1 ; Wang, Wen 2 ; Xiao, Xingning 2 ;
作者机构： 1.Ningbo Univ, Coll Food & Pharmaceut Sci, State Key Lab Managing Biot & Chem Threats Qual &, Ningbo, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, MOA Lab Qual & Safety Risk Assessment Agroprod Han, Hangzhou, Peoples R China
3.Univ Arkansas, Dept Anim Sci, Div Agr, Fayetteville, AR USA
4.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, 198 Shiqiao Rd, Hangzhou 310021, Peoples R China
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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