The effects of ozone-enriched storage atmosphere on pesticide residues and physicochemical properties of table grapes

Abstract

The persistence of residues of some common pesticides was investigated during the cold storage of table grapes in atmospheres of air or 0.64 mg m-3 ozone-enriched air. Residues of two of six pesticides evaluated in the study declined more rapidly in the ozone atmosphere than in air. The highest effect of ozone was on azoxystrobin fungicide. Decrease in the level of this pesticide was 2.8-fold higher in the samples stored in ozone atmosphere than that in air. Ozone did not cause any significant differences in Brix, pH, and total acidity values but increased the weight loss by about 1%. © 2018, © 2018 International Ozone Association.