... Apple tree bark is tonic and febrifuge, and a decoction of it has been used with advantage in intermittent, remittent. Apple Extract ... 70% Polyphenols (UV-VIS) Apple tree bark extract Phloridzin Apple tree bark is tonic and febrifuge, ... quinine, it does not cause gastralgiaApple P.E., Apple Extract, Apple Specification: Polyphenols 75%, 80% , Phloridzin 4 ...