2010年达州市食源性致病菌监测

Monitoring of Food-borne Pathogenic Bacteria in Dazhou City in 2010

目的了解达州市2010年市售食品的食源性致病菌污染状况,为控制和降低食源性疾病提供依据。方法多级分层抽样市售生畜肉、生禽肉、熟肉制品、速冻熟制米面制品、即食非发酵性豆制品、鲜冻水产品、生食水产品、生食类蔬菜、婴幼儿配方米(谷、豆奶)粉、冰激淋、中式凉拌菜、沙拉、鲜榨果汁、皮蛋和生鸭蛋,按照国标和相关方法进行沙门菌、单增李斯特菌、副溶血性弧菌、金黄色葡萄球菌、大肠埃希菌O157:H7、阪崎肠杆菌、空肠弯曲菌和创伤弧菌检测。结果共检测食品15类256件,检出食源性致病菌29株,其中副溶血性弧菌9株、单增李斯特菌8株、金黄色葡萄球菌6株、沙门菌4株、阪崎肠杆菌和EHEC O157:H7各1株,总检出率11.33%,未检出空肠弯曲菌和创伤弧菌。鲜冻水产品、冰激淋、生食水产品、熟肉制品、生畜肉和即食非发酵性豆制品致病菌检出率较高,分别是42.86%、33.33%、20.00%、19.04%和13.33%。结论达州市居民主要消费食品存在食源性致病菌污染,鲜冻水产品、冰激淋、生食水产品和熟肉制品分别主要受副溶血性弧菌、金黄色葡萄球菌和单增李斯特菌污染。

Objective To understand the contamination situation of food-borne pathogen in food market of Dazhou in 2010,so as to identify high-risk foods and provide the basis for food-borne diseases prevention and control in Dazhou City.Methods On-sale raw meat,raw poultry,cooked meat,deep frozen cooked rice products,ready to use non-fermentation bean products,fresh frozen aquatic products,uncooked aquatic products,uncooked vegetables,baby formula rice（grain,bean） powder,ice cream,Chinese salad,salad,fresh fruit juice,preserved eggs and raw duck eggs were sampled with stratified multi-stage method,and the following bacteria were detected： Salmonella spp,Listeria monocytogens,Vibrio parahemolyticus,Staphylococcus aureus,Escherichia coli O Enterobacter sakazakii,Campylobacter jejuni and Vibrio vulnificus,according to national standard and relevant methods.Results Among a total of 256 samples in 15 classes,29 strains of food-borne pathogenic bacteria were detected： Vibrio parahemolyticus,9;Listeria monocytogens,8;Staphylococcus aureus,6;Salmonella spp,4;Enterobacter sakazakii 1;Escherichia coli O157：H7,1,with a total positive rate of 11.33%.Higher positive rates were found in fresh frozen aquatic products（42.86%）,ice cream（33.33%）,uncooked aquatic products（20.00%）,cooked meat（19.04%）,raw meat and ready to use non-fermentation bean products（13.33%）.Conclusion In Dazhou,major kinds of consumed foods were contaminated by food-borne pathogens.Fresh frozen aquatic products,ice cream,uncooked aquatic products and cooked meat were mainly contaminated respectively by Vibrio parahemolyticus,Staphylococcus aureus and Listeria monocytogens.