Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Characteristic of Decomposition of Residual Pesticides on Diazinon and Endosulfan in Young Radish

시설 열무 중 diazinon 및 endosulfan에 대한 잔류농약 분해특성

  • Choi, Geun-Young (National Agricultural Products Quality Management service, Chonnam Branch office) ;
  • Kim, Jun-Hyoung (Department of Food and Nutrition, Chosun University) ;
  • Han, Byung-Jae (Department of Food and Nutrition, Chosun University) ;
  • Jeong, Yang-Mo (Department of Food and Nutrition, Chosun University) ;
  • Seo, Hye-Young (Department of Food and Nutrition, Chosun University) ;
  • Shim, Sung-Lye (Department of Food and Nutrition, Chosun University) ;
  • Kim, Kyong-Su (Department of Food and Nutrition, Chosun University)
  • 최근영 (국립농산물품질관리원전남지원) ;
  • 김준형 (조선대학교 자연과학대학 식품영양학과) ;
  • 한병재 (조선대학교 자연과학대학 식품영양학과) ;
  • 정양모 (조선대학교 자연과학대학 식품영양학과) ;
  • 서혜영 (조선대학교 자연과학대학 식품영양학과) ;
  • 심성례 (조선대학교 자연과학대학 식품영양학과) ;
  • 김경수 (조선대학교 자연과학대학 식품영양학과)
  • Published : 2004.06.30
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Abstract

To investigate the changes in content of residual pesticides for safety production of young radishes in the production steps in greenhouse and to evaluate the safety of young radishes in the final consuming step, biological half-life of pesticides (diazinon, endosulfan) in packaging products was studied. Samples were collected regularly from 2 hours to 10 days after the distribution of pesticides in young radishes. The contents of residual pesticides in young radishes during cultivating in greenhouse as the levels of distribution concentrations reduced with time. During 10 days of pesticides distribution, decomposition rate of pesticides were diazinon > endosulfan. A half-life of endosulfan was 0.6 day longer than diazinon because endosulfan derived persistent endosulfan sulfate. To produce the safe young radish, after the distribution of the pesticides the desirable harvest time based on maximum residue limit (MRL) was 6th day diazinon for and 10th day for endosulfan.

열무의 안전한 생산을 위한 시설재배 생산단계에서의 각 농약 잔류량 변화 추이와 최종 소비단계에서의 농산물 안전성 평가자료로 활용하기 위하여 실제 시험포장에 열무를 파종한 후 수확 10일 전에 2 종(diazinon, endosulfan)의 살충제를 각 성분별로 안전사용 기준에 따라 기준량 및 배량의 처리구에 직접 살포하여 열무의 포장상태에서의 잔류량 감소(생물학적 반감기) 변화를 조사하였다. 시설재배포장에서의 열무 중 각 약제의 살포농도별 잔류량 변화는 시간이 경과함에 따라 그 잔류수준이 점차 감소하였다. 약제 살포 후 분해속도는 diazinon이 endosulfan보다 더 빠른 것으로 나타났다. Endosulfan은 대사산물인 sulfate 때문에 잔류기간이 0.6일 더 길어지는 것으로 나타났다. 안전한 농산물 생산을 위한 열무 중 약제 살포 후 수확일은 잔류허용기준(MRL)을 적용시킬 경우 기준량으로 볼 때 diazinon은 6일 후, endosulfan은 10일 후에 수확하는 것이 바람직한 것으로 나타났다.

Keywords

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