目的 了解池州市食品微生物污染情况,为预防和控制食源性疾病提供科学依据。方法 按照国家标准检验方法进行食品采样和致病菌检测。结果 2014~2015年池州市检测7类共215份食品样品,29份样品检出致病菌,总检出率13.49%。其中致泻性大肠埃希氏菌检出率19.57%、金黄色葡萄球菌检出率6.11%、单核细胞增生李斯特氏菌4.32%、沙门氏菌检出率1.40%、副溶血弧菌未检出。7类食品中外卖配送餐致病菌检出率45.45％,学生餐为20.83％,生肉(畜、禽)为16.67％,调理肉制品为6.67%。动物性水产品(预制、熟制)、坚果与籽类的泥、调味品均未检出致病菌。定型包装食品未检出致病菌,散装食品致病菌检出率19.46%,差异有统计学意义(χ²=14.85,P＜0.01)。结论 池州市居民消费食品中存在一定程度的食源性致病菌污染,外卖配送餐和学生餐是主要污染品种,可能导致较高的食源性疾病风险。

Objective To understand the microbial contamination of foods in Chizhou city,and provide scientific basis for food borne diseases prevention and control. Methods The food samples were collected and detected according to the GB standard. Results A total of 215 food samples were tested, and 29 strains of pathogenic bacteria were detected with positive rate of 13.49%. The positive rate of diarrheagenic escherichia coli was 19.57%, staphylococcus aureus was 6.11%, listeria monocytogenes was 4.32%, Salmonella was 1.40% and Vibrio parahaemolyticus was 0. The detection rate of pathogenic bacteria in takeaway delivery was 45.45％, in student meal was 20.83％, in uncooked pork account and chichen was 16.67％, and in prepared meat products was 6.67%. Food borne bacteria were not detected in cooked and prefabricated animal aquatic products, nuts and seeds of mud, and condiment. The detection rate of pathogenic bacteria in packaged and unpacked foods were 0 and 19.46% respectively, and the difference was significantly(χ²=14.85, P＜0.01). Conclusion It was contaminated by food borne pathogens in foodstuff, which were consumed by Chizhou inhabitants.Takeout and student meal as the ready-to-eat food are at higher risks for causing food borne diseases.