The total phenolic content ranged from 305.38 (blueberry) to
850.52 mg GAE/100 g (blackberry). Following the polyphenol
classification proposed by Vasco, Ruales, and Kamal-Eldin (2008)
using low (500 mg GAE/100 g) denominations, the blackberry
(850.52 mg GAE/100 g) and the strawberry (621.92 mg GAE/
100 g) can be categorized as having a high concentration of phenols.
This classification indicates that this fruit is an excellent
source of phenols. Red raspberries (357.82 mg GAE/100 g), blueberries
(305.38 mg GAE/100 g) and cherries (314.45 mg GAE/
100 g) can be categorized as having an average phenol content,
and they may also be considered a good source of phenols. According
to the data from the literature for berries and cherries, the
blackberry, raspberry, blueberry and cherry all showed phenolic
contents consistent with ranges previously reported. Additionally,
the phenolic content of the strawberry was higher than that reported
in the literature (Table 4).