湖州市学生午餐主要致病菌污染状况  

Primary pathogenic bacteria in student lunch in Huzhou City

作　　者：袁瑞 黄铮[1] 朱幸 宋臻鹏[1] 闻栋[1] YUAN Rui;HUANG Zheng;ZHU Xin;SONG Zhenpeng;WENG Dong(Demartment of Nutrition and Food Safety,Huzhou Center for Disease Control and Prevention,Huzhou(313000),Zhejiang Province,China)

机构地区：[1]浙江省湖州市疾病预防控制中心营养与食品安全科,313000

出　　处：《中国学校卫生》2022年第9期1420-1422,1427,共4页Chinese Journal of School Health

基　　金：湖州市科技计划项目(2021GY14)。

摘　　要：目的了解湖州市学生午餐主要食源性致病菌污染状况,为卫生监管、食源性疾病防制提供参考。方法2021年随机采集湖州市77所大中小学校及幼儿园食堂的学生午餐225份,对其开展大肠埃希菌、金黄色葡萄球菌、蜡样芽孢杆菌、沙门菌、弯曲菌、单核细胞增生李斯特菌以及致泻性大肠埃希菌检测,依据相关标准对其进行微生物污染状况评价。结果225份学生午餐总体不合格率为2.67%(6/225),其中大肠埃希菌>100 CFU/g的比例为1.33%(3/225),蜡样芽胞杆菌、金黄色葡萄球菌、单核细胞增生李斯特菌和致泻性大肠埃希菌的检出率分别为7.11%,1.33%,0.89%和0.44%,金黄色葡萄球菌≥10^(4) CFU/g和蜡样芽胞杆菌≥10^(5) CFU/g的比例均为0。不同学校类型间学生午餐不合格率差异有统计学意义(P<0.05),不合格样品主要来自小学食堂,其不合格率为5.63%(4/71)。结论湖州市学生午餐总体卫生状况尚可,但存在不同程度的食源性致病菌污染,尤其应加强对小学的监督与管理。Objective To understand the microbial contamination of student lunch in Huzhou,in order to provide reference for foodborne disease prevention and control.Methods In 2021,225 samples of student lunch were randomly collected from 77 schools and detected for E.coli,S.aureus,B.cereus,Salmonella,Campylobacter,Listeria monocytogenes,and Diarrhoeal E.coli.According to the relevant standards,the status of microbial contamination was evaluated.Results The total unqualified rate was 2.67%(6/225).The unqualified rates of E coli(>100 CFU/g)was 1.33%.The detection rates of B.cereus,S.aureus,Listeria monocytogenes,and diarrhoeal E.coli were 7.11%(16/225),1.33%(3/225),0.89%(2/225)and 0.44%(1/225),respectively.The unqualified rates of S.aureus(≥10^(4) CFU/g)and B.cereus(≥10^(5) CFU/g)were zero.There are statistical differences in the unqualified rate of student lunch among different school types(P<0.05).The unqualified samples mainly came from the primary school canteen,and the unqualified rate was 5.63%(4/71).Conclusion The sanitary quality of student lunch in Huzhou is acceptable,but there are different degrees of foodborne pathogens pollution,especially in primary schools,and supervision and management should be strengthened.

关 键 词：膳食 细菌 食品污染 合格鉴定 

分 类 号：R155[医药卫生—营养与食品卫生学] G.478[医药卫生—公共卫生与预防医学] R446[文化科学]