摘要
目的了解冷藏冷冻食品中李斯特菌污染状况。方法采用PCR方法对样品中的李斯特菌进行初筛,阳性样品用国标法确证,对6类冷藏冷冻食品共3586份样品进行了李斯特菌带菌状况调查。结果珠海地区李斯特菌污染较为普遍,且存在着多重污染现象,生鲜奶、生肉禽类、蔬菜类样品不仅带李斯特菌率高,且带单增李斯特菌率高。结论应加强冷冻食品的李斯特菌监测与管理。
Objective To investigate the contamination status of foods by L. monocytogenes. Method In the summer months of recant years, 3 586 food samples of 6 kinds of chilled and frozen foods were collected from supermarkets in Zhuhai and examined for L. monocytogenes PCR was applied first to detect Listeria in food samples, and then the national standard method, GB/T 4789.30-2003, was used to validate the positive results. Results The results showed that there were heavy contamination of foods by Listeria in Zhuhai, and there existed multiple contamination. Raw fresh milk, raw meat, poultry and vegetables had high contamination rates of both Listeria and L. monocytogens. Conclusion Inspection and management of chilled and frozen foods should be enhanced to prevent Listeria infection.
出处
《中国食品卫生杂志》
2007年第1期44-46,共3页
Chinese Journal of Food Hygiene
基金
国家质量监督检验检疫总局科研项目(2002IK002-08)
作者简介
冯家望 男 高级工程师
