EFFECT OF PROCESSING CUCUMBER FRUITS ON CHLOR- PYRIFOS-METHYL INSECTICIDE RESIDUES

Document Type : Original Article

Authors

1 Central Agricultural Pesticides Laboratory, Agricultural Research Centre, Giza, Dokki, Egypt

2 Food Science Department, Faculty of Agriculture, Moshtohor, Zagazig University, Egypt

Abstract

Persistence of chlorpyrifos-methyl organophosphorous insecticide residues on cucumber fruits was studied. The effect of washing, peeling and pickling on chlorpyrifos-methyl residues were also studied. The resi­due half-life value of chlorpyrifos-methyl on cucumber fruits was 17 hours. The residues reached a safe level below the MRL three days after treatment. All the previously mentioned processing steps caused a sig­nificant reduction in the insecticide residues. Another part of this study was a survey carried out for detection of organophosphorous insecticide residues on cucumber fruits in some local markets (i.e. Benha, Kaha, El-Mansoura, Belkas, El-Mahalla). The re­sults indicate that all detected organophosphorous residues were below the MRLs of Codex.