论文部分内容阅读
目的分析H市社区环境中(大型超市与农贸市场)流通食品的微生物污染及食源性致病菌的分布特征和耐药性。方法按《全国食品污染物监测相关实验室手册》(细菌学部分)及其他相关国家标准分离、鉴定五类食品的有关细菌,用纸片琼脂扩散(K-B)法测定细菌耐药性。结果全年中以8月份食品含菌量最大,含蛋白质丰富、水分较多的食品(淡水鱼,海产品)微生物污染严重;农贸市场食品的微生物污染较超市严重;五类食品不同程度被食源性致病菌污染,以猪肉与鸡肉污染为重,沙门菌在五类食品中检出率最高,分别是7.86%与12.42%;农贸市场食品的食源性致病菌检出率(23.44%)比超市(16.29%)高,同时O157:H7的检出率也明显高于超市,分别是2.25%与0.56%;分离的食源性致病菌株对常用抗生素显示了相应耐药性。结论以上结果可作为社区公共卫生及预防、控制食源性疾病流行的策略制订提供相应科学根据。
Objective To analyze the distribution of microbial contamination and food-borne pathogens in circulating foodstuffs in community environment (hypermarkets and farmers’ markets) in H City. Methods According to the “National Laboratory for Food Contamination Monitoring” (Bacteriology) and other relevant national standards, five kinds of food-related bacteria were isolated and identified. Bacterial drug resistance was determined by K-B method. Results In the whole year, the most contaminated food was in August, which was contaminated with foods rich in protein and water (freshwater fish and seafood). The microbial contamination of food in farmer’s market was more serious than that in supermarkets. Salmonella was the highest in five kinds of food, accounting for 7.86% and 12.42% respectively. The detection rate of food-borne pathogenic bacteria in the farmer’s market was 23.44 %) Was higher than the supermarket (16.29%), while the detection rate of O157: H7 was also significantly higher than that of the supermarket, which was 2.25% and 0.56% respectively. The isolated food-borne pathogenic strains showed corresponding resistance to commonly used antibiotics. Conclusion The above results can be used as community-based public health and prevent and control the prevalence of food-borne diseases strategy to provide the appropriate scientific basis.