The tested groups were completely individualized (100% of correctly classified samples for originally grouped cases and cross-validated cases), confirming the strong effect exerted by ST in the studied parameters. According to the within-groups correlations between discriminating variables and standardized canonical discriminant functions (data not shown), function 1, which separated non-stored from stored samples, was mostly correlated to p-hydroxybenzoic acid contents and EC50 values of reducing power and DPPH scavenging activity.