重庆市学生餐微生物污染状况监测分析

发布时间：2018-03-05 20:32

本文选题：食品微生物学　切入点：食品污染　出处：《中国学校卫生》2017年03期 　论文类型：期刊论文

【摘要】：目的了解重庆市大中小学及幼儿园统一供应学生餐的微生物污染状况,为进一步确保学生餐安全健康提供依据。方法依据《2014年国家食品污染物和有害因素风险监测工作手册》对样品进行卫生指标菌和食源性致病菌检测。结果卫生指标菌中的菌落总数和大肠埃希菌计数不合格率分别为19.57%,6.09%;食源性致病菌中的沙门菌检测全部合格,不合格率最高的是金黄色葡萄球菌计数,为1.74%。学校类型里中学和小学样品不合格率最高,达到34.88%和33.33%。不同食品类别学生餐中凉拌菜和焙烤油炸类不合格率最高,为54.55%和44.44%。炎热季节的学生餐不合格率为31.25%,凉爽季节为16.28%,差异有统计学意义(χ2=3.45,P0.01)。城市学校学生餐样品不合格率为26.82%,稍高于农村学校。早餐和午餐不合格率分别是27.91%,23.67%,差异无统计学意义(χ2=1.08,P0.05)。结论 2015年重庆市学校学生餐存在不同程度的微生物污染风险。应根据监测结果反映的食品安全风险进一步加强卫生监管。
[Abstract]:Objective to investigate the microorganism pollution in the uniform feeding of students in universities, primary and middle schools and kindergartens in Chongqing. In order to provide the basis for ensuring the students' food safety and health, the hygienic index bacteria and foodborne pathogenic bacteria were detected according to the National Handbook on risk Monitoring of Food contaminants and harmful factors of 2014. The total number of bacteria in the standard bacteria and the unqualified rate of Escherichia coli count were 19.57% 6.09, respectively, and the total number of salmonella in foodborne pathogenic bacteria were all up to standard. The highest unqualified rate was Staphylococcus aureus, which was 1.74. The highest unqualified rate was found in high school and primary school samples, reaching 34.88% and 33.33.The unqualified rates of colouring vegetables and baked fried foods were the highest in different food types of students' meals. The unqualified rate of student meal in hot season was 31.25, and that in cool season was 16.28. The difference was statistically significant (蠂 ~ 2 ~ 2 ~ (3.45) ~ (5) P ~ (0.01)). The unqualified rate of students' meal in urban school was 26.82, which was slightly higher than that in rural school. The unqualified rate of breakfast and lunch was 27.9123.67, respectively. Conclusion in 2015, there was a risk of microbial contamination in school meals in Chongqing, and health supervision should be further strengthened according to the food safety risk reflected by the monitoring results.
【作者单位】：重庆市疾病预防控制中心微生物检验所;
【分类号】：R155.5

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