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目的了解西安市市售食品中金黄色葡萄球菌(Staphylococcus Aureus,SA)的污染状况,为预防和控制食源性疾病提供科学依据。方法依据《国家食源性致病菌监测网工作手册》的方法对2013-2015年西安市市售14类食品进行SA的鉴定和分析。结果共检测食品14类792份,检出SA66株,总检出率为8.33%。SA检出率最高的食品种类为生肉及生肉制品(27.62%),其次是沙拉(22.73%),速冻米面(12.50%);散装食品SA的检出率为10.67%,高于定型包装食品(3.49%),差异有统计学意义(χ~2=11.759,P<0.05);农贸市场抽检食品SA的检出率高达29.23%,集体食堂SA的检出率最低为1.27%,不同场所食品中SA检出率差异有统计学意义(χ~2=51.125 P<0.05);10个区县中,未央区SA的检出率(21.67%)高于其他区县。结论西安市市售食品中SA的污染比较严重,应加强食品卫生的监督,确保人民群众的食品安全。
Objective To understand the contamination status of Staphylococcus Aureus (SA) in the commercial food in Xi’an and provide a scientific basis for the prevention and control of foodborne diseases. Methods According to the National Foodborne Pathogenic Network Monitoring Manual, the identification and analysis of SA in 14 categories of foodstuffs sold in Xi’an from 2013 to 2015 were conducted. Results A total of 792 food samples were detected in 14 categories. SA66 strains were detected with a total detection rate of 8.33%. The highest detection rate of SA was 27.62% for raw meat and raw meat, followed by salad (22.73%) and frozen rice (12.50%). The detection rate of SA in bulk food was 10.67% 3.49%), the difference was statistically significant (χ ~ 2 = 11.759, P <0.05). The detection rate of sampling SA in the farmer’s market was as high as 29.23%, the lowest detection rate of SA in the collective canteen was 1.27% The detection rate of SA was statistically significant (χ ~ 2 = 51.125 P <0.05). Among 10 districts, the detection rate of SA was 21.67% higher than that of other districts and counties. Conclusion SA pollution in the commercial food in Xi’an is more serious. Supervision of food hygiene should be strengthened to ensure people’s food safety.