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目的了解潍坊市市售食品中单核细胞增生李斯特菌(L.m)的污染状况,掌握高危污染食品,提高食源性疾病和食品安全隐患的早期识别、预警与防控能力。方法 2016年在潍坊市流通环节和餐饮环节随机采集475份样品,定性检测L.m。结果 L.m总检出率为2.53%;调理生肉制品L.m检出率为10.00%,不同种类食品L.m检出率差异有统计学意义(χ~2=21.801,P=0.030);不同采样地点的食品L.m检出率差异无统计学意义(χ~2=5.865,P=0.438);不同销售环境食品L.m检率差异无统计学意义(χ~2=3.752,P=0.153);定型包装食品、散装食品L.m检出率差异有统计学意义(χ~2=11.522,P=0.001)。结论潍坊市部分食品受到L.m的污染,存在引起食源性疾病的风险隐患。
Objective To understand the pollution of Listeria monocytogenes (L.m.) on the market of Weifang, master the high-risk contaminated food and improve the early identification, early warning, prevention and control of food-borne diseases and food safety hazards. Methods In 2016, 475 samples were randomly collected from the circulation and catering sectors in Weifang City for the qualitative detection of L.m. Results The overall detection rate of Lm was 2.53%. The detection rate of Lm in raw meat products was 10.00%. The detection rate of Lm in different kinds of food was statistically significant (χ ~ 2 = 21.801, P = 0.030). The food samples at different sampling sites There was no significant difference in the detection rate of Lm (χ ~ 2 = 5.865, P = 0.438). There was no significant difference in Lm detection rate between different sales environment foods (χ ~ 2 = 3.752, P = 0.153) The detection rate of food Lm difference was statistically significant (χ ~ 2 = 11.522, P = 0.001). Conclusion Some foods in Weifang City were contaminated by L.m., causing risks of food-borne diseases.