北京市餐饮业食用冰块微生物污染水平调查

评估北京市餐饮业食用冰块微生物污染的风险。方法 在北京市场抽检了63份餐饮业食用冰块样品,冰块独立分装在无菌采样袋中,2 h内完成采样到检测的过程。按照国家标准方法检测其中的菌落总数、大肠菌群、沙门菌、志贺菌和金黄色葡萄球菌。结果 63份餐饮业食用冰块样品均未检出沙门菌、志贺菌和金黄色葡萄球菌等致病菌。连锁快餐店和咖啡店食用冰块的菌落总数和大肠菌群等指示菌计数较低,部分饮品甜品店食用冰块菌落总数和大肠菌群较高。结论 检测的食用冰块样品均是安全的。部分饮品甜品店用食用冰块指示菌较高,提示生产过程中可能存在微生物污染,需要严格执行卫生操作规范的程序。

Survey on microbial contamination of edible ice from catering industry in Beijing

To assess the risk of microbial contamination of edible icefrom catering industry in the Beijing market.Methods63 samples of edible ice was packed in a sterile sampling bag and the process of testing was completedwithin 2 hours. Aerobic plate count, Coliforms, Salmonella, Shigella and Staphylococcus aureus were detected using national standard methods. ResultsSalmonella, Shigella and Staphylococcus aureus were not detected in all samples. The number of aerobic plate count and Coliforms of edible ice from chain restaurants and coffee shops was low, and higher in drinks and desserts shops.ConclusionResults showed that these edible ice was safe. Drinks and desserts shops need to strictly carry out hygienic practices.