Analysis on Listeria monocytogenes contamination status for most kinds of food in part regions of Gansu

Objective:To know the situation of the food contaminated by L.monocytogenes in Gansu Province,initially identified the main categories of contaminated foods to offer data for the monitoring net of national food safety.Methods:The 665 samples is eight type,gathered in two years.It was segregated and identified in accordance with the L.monocytogenes monitoring methods in food-borne disease monitoring manual work.Results:Forty-three samples were isolated with L.monocytogenes in 665 samples,positive rate was 6.5%,the highest detection rate for raw meat.Conclusion:The food is contaminated by L.monocytogenes seriously in Gansu province,the main contaminated foods were raw meat,poultry,fresh frozen aquatic products,frozen foods Health and cooked meat products,vegetables,vegetable salad and ice cream.