Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

DECONTAMINATION OF ORGANOPHOSPHORUS INSECTICIDE RESIDUES FROM EGGPLANT AND YARD LONG BEAN (Pages : 6 - 9)

The present study was undertaken to quantify the residue loss of quinalphos, diazinon and fenitrothion from eggplant and malathion from yard long bean through washing and steam cooking procedures. Samples were collected from the research field of Entomology Division of Bangladesh Agricultural Research Institute (BARI), Gazipur. Eggplant was spiked with 100% pure 1.0 mg/kg of quinalphos, diazinon, malathion and fenitrothion. After 10 minutes of spiking, one sample was washed with water and another was heated at 1000C. In both cases, 20 minutes waiting period were allowed for proper washing and heating. Extraction and cleanup was done by following standard procedures. The prepared samples were then injected in GC-FTD along with the standard of tested pesticides. Washing with water reduced 34% quinalphos, 28% diazinon and 41% fenitrothion and heating with water at 1000C reduced 95% quinalphos, 84% diazinon and 100% fenitrothion from eggplant. Washing with water reduced 45% malathion and heating with water at 1000C reduced 100% malathion from yard long bean. Effect of O3 sterilizer in reducing pesticide residues from eggplant was also investigated in this study and it was found that O3 sterilizer reduced 79.00% diazinon and 62.50% quinalphos while washing with only water reduced 60.50% diazinon and 40.00% quinalphos from eggplant.Download