辐照降解绿茶甲氰菊酯和溴氰菊酯的可行性研究  

POSSIBILITY OF IRRADIATION DEGRADATION OF FENPROPATHRIN AND DELTAMETHRIN IN GREEN TEA

作　　者：胡祎芳[1] 宛晓春[1] 侯如燕[1] 张海伟[1] 赵秀霞[1] 王孝辉[1] 

机构地区：[1]安徽农业大学茶与食品科技学院教育部农业部茶叶生物化学与生物技术重点开放实验室,安徽合肥230036

出　　处：《核农学报》2011年第5期965-968,987,共5页Journal of Nuclear Agricultural Sciences

基　　金：农业部现代农业产业技术体系(农科教发[2008]10号);张一元科技创新基金项目

摘　　要：对60Coγ射线辐照降解茶叶中甲氰菊酯和溴氰菊酯的可行性进行了探讨。经5kGy辐照后,分别喷施过2种农药的茶鲜叶中,甲氰菊酯的降解率为7.3%,溴氰菊酯为14.7%;加工为成茶后的绿茶中甲氰菊酯的降解率为2.2%,溴氰菊酯为12.1%。甲氰菊酯在茶鲜叶中的辐照降解率比在绿茶中高5.1%,溴氰菊酯在茶鲜叶中的辐照降解率比在绿茶中高2.6%。加工过程对甲氰菊酯降解约为16.4%,而对溴氰菊酯降解率仅为4.4%。The effects of ^60Co γ irradiation and green tea manufacturing processing on degradation of Fenpropathrin and Deltamethrin in green tea during its manufacturing processing were studied.The two pesticides were sprayed onto the tea bushes and fresh tea leaves were picked at the same day,respectively.Half of the fresh leaves were processed into green tea.The fresh tea leaves and green tea were irradiated at 5kGy and the Fenpropathrin in fresh tea degraded 7.3% after irradiation,while Deltamethrin degraded 14.7%.In green tea,Fenpropathrin and Deltamethrin degraded 2.2% and 12.1% respectively after irradiation.Green tea manufacturing processes could reduce 16.4% of Fenpropathrin,and 4.4% of Deltamethrin.

关 键 词：绿茶 农药残留 加工 辐照降解 

分 类 号：TS272.7[农业科学—茶叶生产加工]