Fig. 4

Activity of SOD (A) and CAT (B) enzymes along with H2O2 (C) and ascorbic acid (D) accumulation in kiwifruits treated with dopamine at concentrations of 0 and 150 µM during storage at 1 °C for 120 days. Mean values of n = 3 are displayed, with error bars indicating standard errors of the means. Different letters denote significant differences based on Duncan’s test at P < 0.05.