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Effect of processing on pesticide residues in milk
(CCSHAU, 2005) Chaudhary, Anuj; Dabur, R.S.
Pesticides resides in row milk was measured in samples collected from farmer, vendor, local dairy and organic farm. The residue was found to be above MRL in all the samples except those collected from organic farm. Whereas, in the samples collected from organic farm most of the pesticides residues are even not detected by GLC. Pesticides residues were also measured & compared in processed milk samples. Two types of processing that was heat treatment & fat reduction was done. In heat treatment partial reduction in the pesticides residues was observed after boiling, whereas no effect on pesticide residues was noticed on pasteurization. But, fat removal shows a large reduction in the pesticide residues. Milk samples whose fat percentage was adjusted to 4.5% shows reduction upto 30 per cent as compared to raw milk. While in the milk sample whose fat was further reduced to 3 per cent was showing a reduction upto 83 per cent, most of the pesticides residues are undetectable on GLC after reduction of fat level to 1.5 per cent.