Gallic acid witch hazel

Gallic acid Witch hazel, gallnuts, tea leaves... [Pg.42]

Gallic acid (also called 3,4,5-trihydroxybenzoic acid) (Figure 2.17) is a natural plant phenol. It is an organic acid found in walnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. Gallic acid has been found to... [Pg.40]

Wang FiF, Provan GJ, Fielliwell K (2003) Determination of hamamelitannin, catechins and gallic acid in witch hazel bark, twig and leaf by HPLC. J Pharm Biomed Anal 33 539... [Pg.1971]

Witch hazel leaf contains 8—10% tannin that is composed of hamamelitannin or digally-hamamelose, gaUotannins, and/or proantho-cyanidins (list and horhammer). Other constituents present include free gallic acid, free hamamelose, saponins, choline, resins, flavonoids [quercetin, kaempferol, astragaUn (kaempferol-3-glucoside), quercitrin, afzehn. [Pg.620]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...