The percent recovery of different phenolic compounds, namely
flavonols, phloridzin, cyanidin-3-O-galactoside, chlorogenic acid
and epicatechin was calculated for both extraction sources on a
DM basis. The percent recovery of flavonols was higher in dried apple
peels (76%) than frozen peels (70%). In addition, a similar trend
was observed for phloridzin in dried and frozen peels (74% and
64%, respectively). Cyanidin-3-O-galactoside was detected only in
the frozen peel fractions, whereas it was eluted only in the water
wash step in the dried peels. However, recoveries of chlorogenic
acid (52%) and epicatechin (73%) were higher in the frozen peel