... used with advantage in intermittent, remittent. Apple Extract 70% Polyphenols (UV-VIS) Apple tree bark extract Phloridzin Apple tree bark is tonic and ... quinine, it does not cause gastralgiaApple P.E., Apple Extract, Apple Specification: Polyphenols 75%, 80% , Phloridzin 4%, 40%, 98%,Phloretin 70%, 90 ... fueled a strong interest in these natural botanical compounds. Apple Extract(Polyphenols)