沈阳市零售肉类大肠埃希菌与沙门菌污染调查  

Investigation on contamination by some species of Salmonella and Escherichia coli in retail meats in Shenyang

作　　者：孙艳[1] 汤雪梅[2] 丛柏林[2] 魏锋[2] 周仁清[2] 

机构地区：[1]沈阳药科大学中药学院天然药化教研室,沈阳110016 [2]辽宁大学生命科学系

出　　处：《中国公共卫生》2005年第10期1233-1234,共2页Chinese Journal of Public Health

摘　　要：目的了解沈阳市不同类型市场零售肉类大肠埃希菌与沙门菌污染状况.方法2003年1～12月从沈阳市2个超市,6个农贸市场和10个街边市场,随机采集零售生肉类包括鸡肉、鸭肉、兔肉、猪肉和牛肉样品500份,应用常规方法检测其受大肠埃希菌(Escherichia coli)和沙门菌(Salmonellaserouars)的污染情况,分析不同肉类品种、不同市场类型、不同季节对污染的影响.结果大肠埃希菌检出率在鸡肉、鸭肉和兔肉样品中均为100%,牛肉和猪肉样品中分别是89%和85%;沙门菌在鸡肉、鸭肉、兔肉样品中的检出率分别是61%,71%和83%,在猪肉和牛肉中分别是40%和48%.结论超市样品中2种微生物污染率最低,街边市场零售肉类污染率最高,农贸市场样品受污染程度居中.不同肉类以及不同市场类型2种微生物污染程度有明显差异,零售生肉是传播食源性疾病的主要潜在途径.切实有效的实施危害分析与关键控制点(HACCP)系统,提高消费者的食品安全性意识具有重要意义.Objective The objectives of this study were to determine the prevalence of Escherichfa coli and Salmonella serovars in retail raw meats obtained from markets. A total of 500 samples of retail raw meat samples of chicken, duck, rabbit, pork, and beef were randomly obtained from ratail stores in 2 supermarkets, 6 farm markets, and 10 street markets in the city of Shenyang, from January 2003 to December 2003 and were examined for the presence of Escherichia coli and Salmonella serovars and the effects on microbial contamination with differences product type, season, and market. All chicken, duck and rabbit carcasses yielded E. coli contamination（ 100 % ）. while 89 % of beef chops and 85 % of pork chops were positive for E. coli. About 61% of chicken, 71% of duck and 83 % of rabbit carcasses were contaminated with Salmonella. About 40% of pork and 48 % of beef chops were positive for Salmonella. Significant differences in the microbial prevalence were observed for supermarket-samples with the lowest contamination, street-market samples showing the highest contamination, and farmmarket samples in the middle.

关 键 词：零售肉类 大肠埃希菌 沙门菌 

分 类 号：R155[医药卫生—营养与食品卫生学]