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Flavogallonic Acid
Flavogallonic acid is a hydrolysable tannin that can be found in valonea oak (''Quercus macrolepis'') in chestnut wood or in ''Terminalia myriocarpa''.Pharmacologically Active Ellagitannins from Terminalia myriocarpa. Mohamed S.A. Marzouk, Sayed A.A. El-Toumy, Fatma A. Moharram, Nagwa M.M. Shalaby and Amany A.E. Ahmed, Planta Med, 2002, 68(6), pages 523-527, See also * Flavogallonic acid dilactone Flavogallonic acid dilactone is a hydrolysable tannin that can be found in '' Rhynchosia volubilis'' seeds, in '' Shorea laevifolia'', in '' Anogeissus leiocarpus'' and '' Terminalia avicennoides''.The use of microfluorometric method for activity ... References Hydrolysable tannins {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrolysable Tannin
A hydrolyzable tannin or pyrogallol-type tannin is a type of tannin that, on heating with hydrochloric or sulfuric acids, yields gallic or ellagic acids. At the center of a hydrolyzable tannin molecule, there is a carbohydrate (usually D-glucose but also cyclitols like quinic or shikimic acids). The hydroxyl groups of the carbohydrate are partially or totally esterified with phenolic groups such as gallic acid in gallotannins or ellagic acid in ellagitannins. Hydrolysable tannins are mixtures of polygalloyl glucoses and/or poly-galloyl quinic acid derivatives containing in between 3 up to 12 gallic acid residues per molecule. Hydrolyzable tannins are hydrolyzed by weak acids or weak bases to produce carbohydrate and phenolic acids. Examples of gallotannins are the gallic acid esters of glucose in tannic acid (C76H52O46), found in the leaves and bark of many plant species. Hydrolysable tannins can be extracted from different vegetable plants, such as chestnut wood (''Castan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valonea
''Quercus macrolepis'', the Valonia oak, is a species of oak in the beech family, Fagaceae. Formerly, it was commonly treated as a subspecies of the closely related and sympatric mount Tabor oak. At present, however, it is mostly granted species-status. Geographical range It is found in the Balkans, and in the southern and eastern Mediterranean, including Albania, the Greek Islands, Turkey, Israel, and Morocco. Systematics Within the oak genus, Quercus macrolepis is classified in the subgenus ''Cerris'', section ''Cerris'', which includes the turkey oak and related species. It is most closely related to Mount Tabor oak (Quercus ithaburensis) and Brant's oak (Quercus brantii). Uses The cups, known as valonia, are used for tanning Tanning may refer to: * Tanning (leather), treating animal skins to produce leather * Sun tanning, using the sun to darken pale skin ** Indoor tanning, the use of artificial light in place of the sun ** Sunless tanning, application of a stain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chestnut
The chestnuts are the deciduous trees and shrubs in the genus ''Castanea'', in the beech family Fagaceae. They are native to temperate regions of the Northern Hemisphere. The name also refers to the edible nuts they produce. The unrelated horse chestnuts (genus ''Aesculus'') are not true chestnuts, but are named for producing nuts of similar appearance that are mildly poisonous to humans. True chestnuts should also not be confused with water chestnuts, which are tubers of an aquatic herbaceous plant in the sedge family Cyperaceae. Other species commonly mistaken for chestnut trees are the chestnut oak (''Quercus prinus'') and the American beech ('' Fagus grandifolia''),Chestnut Tree in chestnuttree.net. both of which are also in the Fagaceae family. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminalia Myriocarpa
''Terminalia myriocarpa'', the East Indian almond, is a tree species in the genus '' Terminalia'' found in Southeast Asia. Ecology The larvae of the moth '' Acrocercops terminaliae'' feed on ''T. myriocarpa''. Chemistry The phenolic compounds methyl (S)-flavogallonate, gallic acid, methyl gallate, ethyl gallate, 2,3-di-O- S)-4,5,6,4′,5′,6′-hexahydroxybiphenyl-2,2′-diyldicarbonyl(α/β)-D-glucopyranose, vitexin, isovitexin, orientin, iso-orientin, kaempferol 3-O-β-D-rutinoside, rutin, neosaponarin, ellagic acid, flavogallonic acid and (α/β)- punicalagin can be isolated from the leaves of ''T. myriocarpa''.Pharmacologically Active Ellagitannins from Terminalia myriocarpa. Mohamed S.A. Marzouk, Sayed A.A. El-Toumy, Fatma A. Moharram, Nagwa M.M. Shalaby and Amany A.E. Ahmed, Planta Med, 2002, 68(6), pages 523-527, References External links * * myriocarpa ''Myriocarpa'' is a genus woody plant which ranges in size from shrubs to small trees and is Endemism ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flavogallonic Acid Dilactone
Flavogallonic acid dilactone is a hydrolysable tannin that can be found in '' Rhynchosia volubilis'' seeds, in '' Shorea laevifolia'', in '' Anogeissus leiocarpus'' and '' Terminalia avicennoides''.The use of microfluorometric method for activity-guided isolation of antiplasmodial compound from plant extracts. M. N. Shuaibu, P. A. Wuyep, T. Yanagi, K. Hirayama, T. Tanaka and I. Kouno, Parasitol Res (2008) 102, pp. 1119–1127, See also * Flavogallonic acid References Hydrolysable tannins Trihydroxybenzoic acids Lactones Catechols Pyrogallols {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
