The hue angle with increasing storage duration (Table 1). The ozone treated samples had a lower H
compared to control samples(Figure 4). The chroma reduced in the storage period(Table). It appeared that the samples experience weight loss and dehydration during the storage period, the phenomenon of browning berries occurs and cause more color change in them. Reduction in the amount of green pigment over time is the main index of berry color purity reduction. It seems that in ozone treated samples more green pigments were reduced.