2015—2024年江苏省肉与肉制品中单核细胞增生李斯特氏菌污染状况分析

Analysis of Listeria monocytogenes contamination status in meat and meat products in Jiangsu Province from 2015 to 2024

中文关键词:  肉与肉制品  单核细胞增生李斯特氏菌  污染

英文关键词:meat and meat products  Listeria monocytogenes  contamination

中文摘要:

      目的 掌握江苏省各地区肉与肉制品中单核细胞增生李斯特氏菌污染情况。方法 2015—2024年在江苏省13个地市农贸市场、超市、饭店等各个环节采集不同种类的肉与肉制品5705份, 依据《国家食品污染和有害因素风险监测工作手册》检验标准操作程序进行单核细胞增生李斯特氏菌检测, 结果应用SPSS 27.0软件进行统计学分析。结果 5705份样品中有328份检出单核细胞增生李斯特氏菌, 总检出率5.7%, 其中生肉及其制品检出率显著高于熟肉及其制品(χ2=91.717, P<0.001), 猪肉、牛肉、鸡肉、鸭肉样品中检出率存在显著差异(χ2=11.510, P=0.009); 鲜肉、冷却肉和冻肉类样品检出率存在显著差异(χ2=89.652, P<0.001); 不同采样环节中流通环节样品出率显著高于餐饮环节样品(χ2=10.388, P=0.001), 农贸市场、超市、网店采集的样品单核细胞增生李斯特氏菌检出率存在显著差异(χ2=6.038, P=0.049)。结论 江苏省各地区市售肉与肉制品中持续存在单核细胞增生李斯特氏菌污染, 存在风险隐患, 应加强监测和监管, 预防相关食源性疾病发生。

英文摘要:

      Objective To understand the contamination status of Listeria monocytogenes in meat and meat products in Jiangsu Province. Methods From 2015 to 2024, a total of 5705 different types of meat and meat products were collected from multiple links including agricultural product markets, supermarkets and restaurants in 13 prefecture-level cities in Jiangsu Province to detect Listeria monocytogenes according to the protocol of National food contamination and hazardous factors risk monitoring. The results were statistically analyzed by SPSS 27.0 software. Results Among the 5705 samples, 328 were tested positive for Listeria monocytogenes, with an overall detection rate of 5.7%. The detection rate of raw meat and its products was significantly higher than that of cooked meat and its products (χ2=91.717, P<0.001). There were significant differences in the detection rates among pork, beef, chicken and duck samples (χ2=11.510, P=0.009). Besides, there were significant differences in the detection rates among fresh meat, chilled meat and frozen meat samples (χ2=89.652, P<0.001). The detection rate of samples from the circulation link was significantly higher than that of the catering link (χ2=10.388, P=0.001). There were significant differences in the detection rate of Listeria monocytogenes among samples collected from agricultural product markets, supermarkets, and online stores (χ2=6.038, P=0.049). Conclusion Contamination with Listeria monocytogenes continues to exist in meat and meat products in different regions of Jiangsu Province, which has potential risks. Surveillance and regulation should be enhanced to prevent the occurrence of related foodborne diseases.