The overall anthocyanin and tannin concentration for each of the four parcels of fruit was calculated by first determining the weight proportion each fruit sample contributed to the overall weight of the pooled parcel of fruit. The weight proportion of each fruit sample was then used to calculate the proportion of anthocyanin and tannin each fruit sample contributed to the overall parcel of fruit. The overall anthocyanin and tannin concentration for each fruit parcel was then determined as the average of the proportional contribution of each fruit sample.