gallic compound

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• gallic acid — Chem. a white or yellowish, crystalline, sparingly water soluble solid, C7H6O5, obtained from nutgalls, used chiefly in tanning and in ink dyes. [1785 95; < F acide gallique] * * * ▪ chemical compound       substance occurring in many plants,… …   Universalium

• Natural phenol — Quercetin, a typical flavonoid, is a natural phenol Natural phenols, bioavailable phenols, plant phenolics, low molecular weight phenols or phenoloids[1][2] …   Wikipedia

• Polyphenol — Plant derived polyphenol, tannic acid, formed by esterification of ten equivalents of the phenylpropanoid derived gallic acid to a monosaccharide (glucose) core from primary metabolism …   Wikipedia

• Tannin — For other uses, see Tannin (demon). Tannic acid …   Wikipedia

• carboxylic acid — Chem. any organic acid containing one or more carboxyl groups. [1900 05; CARBOXYL + IC] * * * Any organic compound with the general chemical formula ―COOH in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond to make a… …   Universalium

• Phenolic content in wine — The phenolic compounds in Syrah grapes contribute to the taste, color and mouthfeel of the wine. The phenolic compounds natural phenol and polyphenols in wine include a large group of several hundred chemical compounds that affect the taste,… …   Wikipedia

• Iron gall ink — Oak galls and iron(II) sulfate, ingredients of iron gall ink Iron gall ink (also known as iron gall nut ink or oak gall ink) is a purple black or brown black ink made from iron salts and tannic acids from vegetable sources. It was the st …   Wikipedia

• pyrogallol — pyrogallic /puy reuh gal ik, gaw lik/, adj. /puy reuh gal awl, ol, geuh lawl , lol /, n. a white, crystalline, water soluble, poisonous, solid, phenolic compound, C6H3(OH)3, obtained by heating gallic acid and water: used chiefly as a developer… …   Universalium

• Nomadic — Le Nomadic dans le port de Cherbourg Autres noms Nomadic (1910 1934) Ingénieur Minard (1934 1974) Nomadic (1974 en service) Histoire Quille posée …   Wikipédia en Français

• Kenning — A kenning (Old Norse kenning [cʰɛnːiŋg] , Modern Icelandic pronunciation [cʰɛnːiŋk] ) is a circumlocution used instead of an ordinary noun in Old Norse and later Icelandic poetry. For example, Old Norse poets might replace sverð , the regular… …   Wikipedia

• Mango — This article is about the fruit. For other meanings of the word, see Mango (disambiguation). Australian Mango with its cross section …   Wikipedia