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Establishment of Pre-Harvest Residue Limits (PHRL) of Flubendiamide and Pyriofenone on Strawberry (Fragaria ananassa Duch.)

생산단계 잔류허용기준설정을 위한 Flubendiamide 및 Pyriofenone의 딸기(Fragaria ananassa Duch.) 중 경시적 잔류특성 연구

  • Kim, Hee-Gon (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University, Environment Friendly Agricultural Products Safety Center) ;
  • Kim, Ji-Yoon (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University, Environment Friendly Agricultural Products Safety Center) ;
  • Hur, Kyung-Jin (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University, Environment Friendly Agricultural Products Safety Center) ;
  • Kwon, Chan-Hyeok (Animal Products Standard Division, Ministry of Food and Drug Safety) ;
  • Hur, Jang Hyun (School of Natural Resources and Environmental Science, College of Agriculture and Life Sciences, Kangwon National University, Environment Friendly Agricultural Products Safety Center)
  • 김희곤 (강원대학교 농업생명과학대학 환경융합학부, 강원대학교 친환경농산물안전성센터) ;
  • 김지윤 (강원대학교 농업생명과학대학 환경융합학부, 강원대학교 친환경농산물안전성센터) ;
  • 허경진 (강원대학교 농업생명과학대학 환경융합학부, 강원대학교 친환경농산물안전성센터) ;
  • 권찬혁 (식품의약품안전처 축산물기준과) ;
  • 허장현 (강원대학교 농업생명과학대학 환경융합학부, 강원대학교 친환경농산물안전성센터)
  • Received : 2017.02.28
  • Accepted : 2017.03.18
  • Published : 2017.03.31

Abstract

In this study, the residue patterns of flubendiamide and pyriofenone registered in the strawberry were investigated to predict pre-harvest residue limit (PHRL). The samples were harvested at 0, 1, 2, 3, 5, 7, 10 days after treatment and the pesticide residues were analyzed by HPLC/UVD. The limit of quantification (LOQ) was $0.01mg\;kg^{-1}$ for flubendiamide and pyriofenone. The recovery levels of flubendiamide and pyriofenone were $90.9{\pm}2.2%$ and $81.9{\pm}0.8%$, $87.7{\pm}2.1%$ and $85.3{\pm}1.1%$ for spiked levels of 0.01 and $0.1mg\;kg^{-1}$, respectively. The values of biological half-lives for field 1 and field 2 were 8.1 and 7.2 days for flubendiamide, 7.0 and 6.9 days for pyriofenone. According to these results, we recommends the level of PHRL on strawberry for flubendiamide and pyriofenone as 1.87 and $3.76mg\;kg^{-1}$ at 10 days before harvest, respectively.

본 연구는 딸기 중 flubendiamide 및 pyriofenone의 경시적 잔류변화를 조사하여 반감기를 산출함으로써 생산단계 잔류허용기준을 설정하고자 수행하였다. Flubendiamide 및 pyriofenone 농약을 안전사용기준에 준하여 포장 1, 2에 각각 살포한 후 0, 1, 2, 3, 5, 7, 10일차에 딸기 시료를 채취하여 각각의 농약을 HPLC/UVD를 이용하여 분석하였다. 두 농약의 정량한계는 모두 $0.01mg\;kg^{-1}$이었고 $0.2mg\;kg^{-1}$$2mg\;kg^{-1}$ 수준에서 회수율은 각각 flubendiamide의 경우 $90.9{\pm}2.2%$$81.9{\pm}0.8%$이었으며, pyriofenone은 $87.7{\pm}2.1%$$85.3{\pm}1.1%$이었다. 딸기 중 flubendiamide의 생물학적 반감기는 포장 1, 2에서 각각 8.1일과 7.2일이었으며, pyriofenone의 경우 7.0일과 6.9일이었다. Flubendiamide 및 pyriofenone에 대하여 딸기 수확 10일 전 잔류량이 각각 $1.87mg\;kg^{-1}$$3.67mg\;kg^{-1}$으로 나타난다면 최종 잔류량은 MRL 수준 이하의 안전한 농산물을 생산할 수 있을 것으로 사료된다.

Keywords

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