零售鸡肉中沙门氏菌的半定量风险评估研究

Semi-quantitative risk assessment for Salmonella in raw chicken of Nanjing

中文关键词:  沙门氏菌  鸡肉  半定量风险评估  食品安全

英文关键词:Salmonella  chicken  semi-quantitative risk assessment  food safety

中文摘要:

      目的 在调查了解南京市零售鸡肉中沙门氏菌污染情况的基础上, 对零售鸡肉中沙门氏菌进行半定量评估, 预测南京市零售鸡肉中沙门氏菌污染的风险, 并提出降低风险的预防措施。方法 根据国际食品法典委员会(CAC) 推荐的微生物风险评估的4个步骤, 应用半定量风险评估软件(risk ranger), 结合流行病学调查和微生物检测的数据, 对鸡肉中沙门氏菌污染的风险进行半定量评估。结果 南京市居民每人每天因食用被沙门氏菌污染的鸡肉而发生食物中毒的概率为2.1×10-7, 每年因沙门氏菌污染鸡肉而引发食物中毒的人数为636人, 风险等级为45。结论 南京市零售鸡肉中沙门氏菌污染的风险程度为中度风险, 人群感染鸡肉沙门氏菌的风险与人群的感染剂量、交叉污染、加工处理的方式等因素有关, 未来应加强监管。

英文摘要:

      Objective To predict the risk of Salmonella in retail chicken in Nanjing by semi-quantitative risk assessment and propose preventive measures to reduce the risk on the basis of the investigation of Salmo-nella contamination. Methods According to the CAC risk evaluation steps recommendation for microbial, a semi-quantitative risk assessment software (risk ranger) combining with epidemiological survey and microbial tests was applied to evaluate the risk of Salmonella in retail chicken. Results The result indicated that the probability of food poisoning each year from contaminated chicken by Salmonella would be 2.1×10-7 for normal populations, the total predicted food poisoning per annum in population of interest would be 636 and the risk ranking was 45. Conclusion The risk of Salmonella contaminated in retail chicken in Nanjing was in moderate hazard. The risk of illness was related to infectious dose of Salmonella, cross- contamination, processing methods, the supervision and management of retail chicken and chicken products should be improved.