2018—2020年重庆市市售冷藏冷冻动物源食品致病微生物污染状况分析

Analysis on pathogenic microorganism contamination in refrigerated and frozen food of animal origin in Chongqing from 2018 to 2020

目的了解2018—2020年重庆市市售冷藏冷冻动物源食品中致病微生物的污染情况。方法采集市售冷藏冷冻动物源食品,按照《国家食品污染物和有害因素风险监测工作手册》对产气荚膜梭菌、创伤弧菌、单核细胞增生李斯特氏菌、副溶血性弧菌、霍乱弧菌、弯曲菌、溶藻弧菌、沙门氏菌、小肠结肠炎耶尔森氏菌、致泻大肠埃希氏菌进行检测。结果2018—2020年共采集检测720件样本,10类食源性致病菌项目均有检出,总体检出率为27.78%(200/720)。年检出率18.75%~32.50%。不同食源性致病菌中副溶血性弧菌检出最多,占总阳性样本的30.00%(60/200);不同种类的食品进行比较,螺类的食源性致病菌检出率最高,为43.00%(86/200)。结论重庆市市售冷藏冷冻动物源食品中存在不同程度的致病微生物污染,应加强对重点环节和重点食品的监管。

Objective To understand the contamination of pathogenic microorganisms of refrigerated and frozen food of animal origin in Chongqing.Methods The refrigerated and frozen food of animal origin was collected and tested for Clostridium perfringens,Vibrio vulnificus,Listeria monocytogenes,Vibrio parahaemolyticus,Vibrio cholerae,Campylobacter,Vibrio alginolyticus,Salmonella,Yersinia enterocolitica and Diarrhea Escherichia coli in accordance with the Manual for China National Food Contamination and Harmful Factors Risk Monitoring.Results A total of 720 samples were collected and tested from 2018 to 2020.All the 10 kinds of foodborne pathogens were detected in the program,and the overall detection rate was 27.78%(200/720).The annual detection rate was 18.75%-32.50%.Vibrio parahaemolyticus was detected most frequently in different foodborne pathogens,accounting for 30.00%(60/200)of the total positive samples.Compared with different kinds of food,the detection rate of food borne pathogens in snails was the highest,which was 43.00%(86/200).Conclusion There are different degrees of pathogenic microorganism pollution in the refrigerated and frozen food of animal origin in Chongqing,so it is necessary to strengthen the supervision of key links and key foods.