3d image of caftaric acid skeletal formula

caftaric acid non-flavonoid phenolic compound juice grapes vitis vinifera white wine esterified phenolic hydroxycinnamate tartaric alcoholic malolactic fermentation chemical oxidation wine browning bottling raisins echinacea purpurea bioactive bioavailability winemaker press ppo grape polyphenol oxidase rendering parasympathomimetic pharmacognosy precursor pharmacopoeia herb synthesis phytotherapy contractor plant metabolic substrate bioprecursor herbalism enzyme derivative intermediate biosynthetic catabolism metabolism pathway