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Reduction of azinphos-methyl, chlorpyrifos, esfenvalerate, and methomyl residues in processed apples
M J Zabik1, M F El-Hadidi, J N Cash
1National Food Safety and Toxicology Center, Department of Food Science and Human Nutrition, and Department of Botany and Plant Pathology, Michigan State University, East Lansing, Michigan 48823, USA.
Abstract:
McIntosh, Red Delicious, and Golden Delicious from two years of experimental spray programs using azinphos-methyl, chlorpyrifos, esfenvalerate, and methomyl were processed into frozen apple slices, applesauce, single-strength juice, and juice concentrate. Residue levels were expressed as micrograms per 150 g of apple or the equivalent amount of apple product to calculate the percentage change in these pesticides brought about by processing. Producing single-strength apple juice reduced azinphos-methyl, chlorpyrifos, esfenvalerate, and methomyl residues by 97.6, 100, 97.8, and 78.1%, respectively. Production of applesauce reduced all four compounds by >/=95%. Azinphos-methyl, chlorpyrifos, esfenvalerate, and methomyl residues were reduced in apple slices by 94.1, 85.7, 98.6, and 94.7%, respectively. Processing is shown to be very effective in reducing the levels of these pesticides.
