The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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Residual Characteristics of Fluquinconazole and Flusilazole in Tomatoes during Greenhouse Cultivation and Processing

토마토 중 fluquinconazole과 flusilazole의 포장 및 가공에 따른 잔류특성

  • Noh, Hyun Ho (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Lee, Jae Yun (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Park, Hyo Kyoung (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Jeong, Hye Rim (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Jin, Me Jee (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Lee, Jung Woo (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Jeong, Heon Sang (Department of Food Science and Biotechnology, College of Agriculture, Life and Environment Sciences, Chungbuk National University) ;
  • Lee, Sang Hoon (Department of Agrofood Resources, National Academy of Agricultural Sciences, Rural Development Administration) ;
  • Kyung, Kee Sung (Department of Environmental and Biological Chemistry, College of Agriculture, Life and Environment Sciences, Chungbuk National University)
  • 노현호 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 이재윤 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 박효경 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 정혜림 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 진미지 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 이정우 (충북대학교 농업생명환경대학 환경생명화학과) ;
  • 정헌상 (충북대학교 농업생명환경대학 식품생명공학과) ;
  • 이상훈 (농촌진흥청 국립농업과학원 농식품자원부) ;
  • 경기성 (충북대학교 농업생명환경대학 환경생명화학과)
  • Received : 2017.03.09
  • Accepted : 2017.03.21
  • Published : 2017.03.31
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Abstract

This study was carried out to investigate residue dissipation of fluquinconazole and flusilazole in field-sprayed tomatoes during greenhouse cultivation and processing. The test pesticide, fluquinconazole+flusilazole 8.5 (7+1.5)% SC, was sprayed onto the tomatoes growing in a greenhouse according to Korea preharvest intervals and then samples were collected on 0 (3 hours after spraying), 1, 3, 5 and 7 days after last application for decline test. For processing test, tomatoes collected at harvest on 5 day after last application were processed to puree and juice. Limits of quantitation of fluquinconazole and flusilazole were 0.005 mg/kg in both tomatoes and their processed products. Recoveries for validation of the analytical methods for fluquinconazole and flusilazole in tomatoes and their processed products ranged from 74.8 to 97.5%. Biological half-lives of fluquinconazole and flusilazole in tomatoes under greenhouse conditions found to be 5.2 and 6.4 days, respectively. Average persistent residue levels of fluquinconazole and flusilazole were 37.34 and 79.53% after washing, 8.95 and 28.75% in filtrates after boiling, 3.58 and 14.66% in puree, and 3.34 and 13.52% in juice, respectively. These results indicated that the test pesticide residues on tomatoes could be largely removed through washing and boiling.

토마토 중 fluquinconazole과 flusilazole의 온실 재배 및 가공과정 중 소실을 구명하기 위하여 온실에서 재배 중인 토마토에 시험농약(fluquinconazole+flusilazole 8.5(7+1.5)% 액상수화제)을 안전사용기준에 준하여 살포한 후 경시적인 잔류량 변화 시험을 위해서는 최종 약제 살포 당일, 1, 3, 5, 7일차에, 가공시험을 위해서는 최종 약제 살포 후 5일차에 시료를 채취하였으며, 가공과정 중 잔류량 변화를 시험하기 위하여 토마토를 퓨레와 주스로 가공하였다. 토마토와 가공품 중 fluquinconazole과 flusilazole의 정량한계는 모두 0.005 mg/kg이었으며, 회수율은 74.8-97.5%이었다. 온실조건에서 토마토 중 fluquinconazole과 flusilazole의 생물학적 반감기는 각각 5.2와 6.4일이었다. 가공에 따른 토마토 및 가공품 중 fluquinconazole과 flusilazole의 평균 잔류수준은 물로 세척 후는 각각 37.34와 79.53%, 끓인 후 여과액에는 각각 8.95와 28.75%, 퓨레에는 3.58과 14.66%, 주스에는 3.34와 13.52%이었다. 이 결과로 미루어 볼 때 토마토 중 fluquinconazole과 flusilazole은 주로 세척과 끓임에 의해 제거되는 것으로 판단되었다.

Keywords

References

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