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目的了解广西境内零售水产品中副溶血性弧菌(VP)污染状况及危险性,为水产品食用消费安全及预警预报系统建立提供科学依据。方法依据中华人民共和国国家标准《食品卫生微生物学检验方法副溶血性弧菌检验》(GB/T4789.7-2003)和国家食源性疾病监测网监测方案。结果水产品中VP阳性率为36.09%,其中海产品中VP阳性率为48.42%,明显高于淡水产品中VP阳性率20.27%,差异有统计学意义(P<0.05)。海产品中以牡蛎VP阳性率最高,达78.26%,显著高于鱼类、虾类、螺类和蟹类中VP阳性率(P<0.05);非即食淡水鱼和即食生食鱼片中VP阳性率34.61%和12.50%;水产品中VP阳性率存在地区差异(P<0.05);74株VP存在9种O抗原(O1、O2、O3、O4、O5、O6、O8、O10、O11)结构,感染性VP株主要是O1和O3血清型。结论水产品中VP污染较高,特别是海产品中VP污染始终保持在较高风险,其中牡蛎尤其突出。淡水产品VP污染有趋高态势,特别是即食生食鱼片存在更高的食用风险,必须加强预防和控制措施。
Objective To understand the status and risk of Vibrio parahaemolyticus (VP) in retail aquatic products in Guangxi and provide a scientific basis for the establishment of food consumption safety and early warning system of aquatic products. Methods According to the national standard of the People’s Republic of China, “Food Hygiene Microbiological Test Vibrio parahaemolyticus test” (GB / T4789.7-2003) and the national foodborne disease monitoring network monitoring program. Results The positive rate of VP in aquatic products was 36.09%, of which the positive rate of VP in marine products was 48.42%, which was significantly higher than that in freshwater products (20.27%). The difference was statistically significant (P <0.05). The positive rate of oyster VP in seafood was the highest (78.26%), which was significantly higher than that in fish, shrimp, snail and crab (P <0.05), VP positive in non-ready freshwater fish and instant raw fish Rate of 34.61% and 12.50%, respectively. There was a regional difference in the positive rate of VP in aquatic products (P <0.05). There were 9 O antigen (O1, O2, O3, O4, O5, O6, O8, O10, O11) , The infectious VP strains are mainly O1 and O3 serotypes. Conclusion The VP pollution in aquatic products is high, especially the VP pollution in marine products is always at a higher risk, especially oyster. VP pollution of freshwater products is on the rise. In particular, there is a higher risk of consumption of ready-to-eat raw fish fillets. Prevention and control measures must be strengthened.