^(60)Coγ射线对猪肉中囊尾蚴的辐照杀灭效应

Inactivation effect of ^(60)Co gamma ray on cysticerci of Taenia solium in pork

目的揭示猪肉中囊尾蚴灭活率与辐照剂量的相关关系及最小杀灭剂量,为制定相应辐照卫生规范提供科学依据。方法以不同剂量60Coγ射线处理感染囊尾蚴的猪肉,并用新鲜猪胆汁孵化剥离出的囊尾蚴,根据成活率计算校正灭活率。结果辐照剂量与校正灭活率具有线性相关,D10值约为3.8 kGy,4.5 kGy可完全杀灭囊尾蚴。结论 4.5 kGyγ射线对猪肉中囊尾蚴有很好的杀灭效果。

Objective revealing the relationship between irradiation dose and inactivation ratio for cysticerci of Taenia solium in pork,determining the minimal dose for totally killing cysticerci and providing scientific evidence for setting up relevant hygienic standards of radiation.Methods After Taenia solium infected pork being treated with different irradiation doses;cysticerci were separated and incubated in fresh swine bile.The adjusted inactivation ratio was calculated according to the survival rate.ResultsThere was a linear correlation between irradiation dose and adjusted inactivation ratio,the D10 value was about 3.8 kGy,and a totally killing could be achieved by 4.5 kGy irradiation.ConclusionIrradiation at a dose of 4.5 kGy could be applied as the maximum dose to inactivate cysticerci of Taenia solium in pork processing.