Peroxidases z Blanching indicator z Heme: Iron cofactor z Oxidative deterioration of Vit C z Bleaching of carotenoids z Decoloration of anthocyanins z Peroxidative deterioration of fatty acids – Off-flavorPeroxidases z Blanching indicator z Heme: Iron cofactor z Oxidative deterioration of Vit C z Bleaching of carotenoids z Decoloration of anthocyanins z Peroxidative deterioration of fatty acids – Off-flavor