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目的了解北京市崇文区食品中致病菌的污染状况和污染水平,初步判定了高危食品的类别和种类,为本区的食源性疾病提供科学的依据,保障居民的健康生活。方法按照《北京市食源性致病菌及其致病因子监测手册》,2012年-2015年共采集24类,共计688份食品样本,对沙门菌、金黄色葡萄球菌、致泻性大肠埃希菌、单核细胞增生李斯特菌、蜡样芽胞杆菌、副溶血性弧菌、阪崎肠杆菌、铜绿假单胞菌等10种食源性致病菌进行监测分析。结果检出致病菌30株,总检出率为4.36%。以铜绿假单胞菌的检出率最高,为5.88%,其次为金黄色葡萄球菌(3.51%)、阪崎肠杆菌(2.86%)。冷冻肉糜的检出率最高,为28.57%,其次为生畜肉(23.53%)、外卖配送餐(12.50%)、生禽肉(10.00%)。结论直饮水中铜绿假单胞菌对本区居民的饮用水卫生存在一定的安全隐患。肉制品和外卖配送餐中的金黄色葡萄球菌污染较为严重,是重要的高危食品,应加以重视。
Objective To understand the pollution status and pollution levels of pathogenic bacteria in food in Chongwen District, Beijing. The types and types of high risk food were initially determined to provide a scientific basis for foodborne diseases in this area to ensure the healthy life of residents. Methods According to “Beijing Foodborne Pathogenic Bacteria and its Pathogenic Factors Monitoring Manual”, a total of 24 categories were collected from 2012 to 2015, a total of 688 food samples, the Salmonella, Staphylococcus aureus, diarrhea-prone large intestine Xishuijin, Listeria monocytogenes, Bacillus cereus, Vibrio parahaemolyticus, Enterobacter sakazakii, Pseudomonas aeruginosa and other 10 kinds of food-borne pathogens were monitored and analyzed. Results 30 pathogenic bacteria were detected, the total detection rate was 4.36%. The highest detection rate of Pseudomonas aeruginosa was 5.88%, followed by Staphylococcus aureus (3.51%) and Enterobacter sakazakii (2.86%). Frozen ground meat had the highest detection rate of 28.57%, followed by live meat (23.53%), takeaway meal (12.50%) and raw poultry meat (10.00%). Conclusion Pseudomonas aeruginosa in drinking water has certain potential safety hazard to the drinking water hygiene of residents in this district. Staphylococcus aureus contamination in meat products and take-out delivery meals is more serious and is an important high-risk food that should be taken seriously.