Studies on Residual Decomposition Products of Pesticides in Agricultural Products (II)

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  • 農作物に残留する農薬分解生成物に関する研究 (第2報)
  • ノウサクブツ ニ ザンリュウスル ノウヤク ブンカイ セイセイブツ ニカンスル
  • Degradation of Ethylenethiourea in the Preservation of Agricultural Products
  • 農作物の保存中におけるエチレンチオウレアの消長

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Abstract

Degradation of ethylenethiourea (ETU) and ethylenebisdithiocarbamates (EBDCs) under the various conditions of preservation in agricultural products were examined.<br>ETU applied on surface of spinach leaves was decreased by 96% at a room temperature of 20-25°C and by 73% at 5°C after 8 days respectively.<br>ETU in EBDCs applied on surface of spinach leaves was decreased by 92% at a room temperature, by 68% at 5°C after 8 days and by 57% under the sunlight after 5hr.<br>ETU was absorbed in spinach was stable comparing with that applied on surface of spinach leaves and decreased by 54% at a room temperature and by 30% at 5°C after 8 days.<br>On bottled fruits and vegetables the decomposition of added EBDCs was inhibited with increasing acidity. For instance, ETU in bottled tomatopuree added EBDCs in advance did not decrease even 200 days later.

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