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Residues of New Fungicide, Isopyrazam on Cucumber and Oriental Melon

Pyrazolecarboxamide계 살균제 Isopyrazam의 오이 및 참외 중 잔류특성

  • Received : 2013.02.10
  • Accepted : 2013.03.13
  • Published : 2013.03.31

Abstract

Isopyrazam, a new pyrazolecarboxamide fungicide developed by Syngenta, was highly active against foliar powdery mildew pathogens on cucumber, oriental melon and various vegetables. Following foliar applications on cucumber and oriental melon, crop residues were determined using high performance liquid chromatography. For all studies, limit of quantification was 0.02 mg/kg and minimum detection level was 2.0 ng and recoveries were 83.0-88.0% on cucumber, 92.4-104.5% on oriental melon. Isopyrazam was detected 0.07-0.72 mg/kg on cucumber and < 0.02-0.68 mg/kg on oriental melon, respectively. The TMDI (Theoretical Maximum Dailly Intake) of isopyrazam on cucumber and oriental melon was estimated to less than 1.765% of ADI.

신젠타에서 최근에 개발한 pyrazolecarboxamide계 살균제인 isopyrazam은 syn과 anti 이성질체로 구성되어 있으며, 흰가루병에 대해 우수한 예방과 치료효과를 나타내고 있다. 이 약제를 오이와 참외에 경엽처리하여 잔류수준을 평가하였다. HPLC로 분석하였을 때, 정량한계는 0.02 mg/kg, 최소검출량은 2.0 ng이었고, 회수율은 오이에서 83.0~88.0%, 참외에서는 92.4~104.5%로 나타났다. Isopyrazam의 오이와 참외 중의 잔류량은 각각 0.07~0.72 mg/kg, 0.02 mg/kg 미만부터 0.68 mg/kg으로 나타났다. 이 결과를 바탕으로 Isopyrazam에 대한 위해성평가를 수행한 결과 평균섭취량의 경우 ADI의 1.765%로 나타났고, 상위 5% 섭취량에서는 ADI의 8.57%수준으로 조사되어 isopyrazam의 위해성은 거의 없는 것으로 판단되었다.

Keywords

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