Influence of chitosan coating with or without the active antimicrobial lactoperoxidase system was
studied on postharvest mangoes. Mangoes were treated with three concentrations of chitosan (0.5; 1;
1.5%) containing or not lactoperoxidase with or without iodine as a second electron donor. Coatings
containing 1 and 1.5% chitosan incorporated with lactoperoxidase system efficiently inhibited fungal
proliferation and delayed mango ripening. Iodine did not influence antifungal activity. Ripening
parameters (firmness, respiration, weight loss and color) were not influenced by the lactoperoxidase
system, but were more influenced by chitosan concentration. Chitosan coating alone reduced weight loss,
and delayed the decline in firmness and respiration rate. It exhibited a beneficial effect on the contents of
total soluble solids (TSS), ascorbic acid, total acidity (TA) and pH