Considering that the MeOH extracts account for over 90% of the
total fruit extract, our LPO inhibition results indicate that the black
raspberry, R. racemosus, has the highest antioxidant potential of the
six berries studied, followed by the yellow cultivar of R. idaeus
raspberries. It is interesting that the black raspberry, R. acuminatus,
which had the highest anthocyanin content, exhibited the lowest
antioxidant activity (34%), whereas the yellow raspberry which
had no anthocyanins possessed greater antioxidant activity than
all except one of the berries studied.