Analysis on the contamination situation of Listeria monocytogenes in bluk ready-to-eat food in Jilin Province from 2011 to 2022
Objective To understand the contamination situation of Listeria monocytogenes in bulk ready-to-eat food in Ji-lin Province,so as to provide scientific basis for controlling the contamination of bulk ready-to-eat food and strengthening food safety supervision in Jilin Province.Methods From 2011 to 2022,6 085 samples of 10 types of bulk ready-to-eat food were randomly purchased from food service and circulation links in 9 regions of Jilin Province,and detected according to GB 4789.30-2010/2016"National Standard for Food Safety Listeria Monocytogenes Test",and the results were statisti-cally analyzed.Results A total of 180 strains of Listeria monocytogenes were detected in 6 085 samples,with a detection rate of 2.96％.Among them,the detection rate of meat and meat products was the highest,6.29％;The detection rates of eggs and egg products,baked and fried food,milk and dairy products,catering food and soybean products were 0.50％-3.04％.The detection rate of nuts,frozen drinks,aquatic products,fruits and their products was 0％.There were signifi-cant differences in the detection rate among different food types(x2=110.323,P＜0.05).The detection rates of Listeria monocytogenes were 2.33％and 3.45％in the catering service link and circulation link,respectively,and the detection rates in the circulation link were higher than those in the catering service link.The difference between sampling locations was statistically significant(x2=6.612,P＜0.05).Conclusion Meat products,soybean products,catering food presented a higher risk of contamination among all bulk ready-to-eat food categories in Jilin Province,suggesting that these types of food should be the focus of food safety supervision.Supervision of bulk ready-to-eat food in food circulation needs to be strengthened.
Listeria monocytogenesBulk foodReady-to-eat foodSupervision of contamination
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