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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 ''Terminalia avicennioides'' () is a tree species in the genus '' Terminalia'' found in West Africa. Castalagin and flavogallonic acid dilactoneThe use of microfluorometric method for activity-guided isolation of antiplasmodial compound from p ...''.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 Heterocyclic compounds with 4 rings {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrolysable Tannin
A hydrolysable 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 hydrolysable 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. Hydrolysable tannins are hydrolysed 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 (''Cast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchosia Volubilis
''Rhynchosia volubilis'' is a species of flowering plant in the family ''Fabaceae''. It is native to Southeast China, Hainan, Japan, Korea, Nansei-shoto, Taiwan, and Vietnam. Tergallic acid dilactone can be found in ''R. volubilis'' seeds. References External links volubilis Volubilis (; ; ) is a partly excavated Berber-Roman city in Morocco, situated near the city of Meknes, that may have been the capital of the Kingdom of Mauretania, at least from the time of King Juba II. Before Volubilis, the capital of the kin ... Plants described in 1790 Flora of China Flora of Hainan Flora of Japan Flora of Korea Flora of Taiwan Flora of Vietnam Taxa named by João de Loureiro {{Phaseoleae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shorea Laevifolia
''Shorea laevis'' is a species of tree in the family Dipterocarpaceae. It is native to Myanmar, Thailand, Sumatra, Peninsular Malaysia and Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda .... It is considered Vulnerable due to deforestation for agriculture and being logged for its timber. References laevis Trees of Thailand Trees of Myanmar Trees of Sumatra Trees of Peninsular Malaysia Dipterocarps of Borneo Plants described in 1922 Taxonomy articles created by Polbot {{Dipterocarpaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anogeissus Leiocarpus
''Terminalia leiocarpa'' (African birch; ) is a species of tree in the genus '' Terminalia''. It is a deciduous tree native of tropical Africa from Senegal and Guinea in the west to Eritrea in the east and as far south as the Democratic Republic of the Congo. ''Terminalia leiocarpa'' germinates in the new soils produced by seasonal wetlands. It is a forest fringe plant, growing at the edges of the rainforest, although not deep in the rainforest. It also grows in savanna, and along riverbanks, where it forms gallery forests. The tree flowers in the rainy season, from June to October. The fruit are winged samaras, and are dispersed by ants. Ethnobotany It is one of the plants used to make ''bògòlanfini'', a traditional Malian mudcloth. Small branches with leaves are crushed to make one of the yellow dyes. The inner bark of the tree is used as a human and livestock anthelmintic for treating worms, and for treatment of a few protozoan diseases in animals, '' nagana'' (a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terminalia Avicennoides
''Terminalia avicennioides'' () is a tree species in the genus '' Terminalia'' found in West Africa. Castalagin and flavogallonic acid dilactoneThe 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, are hydrolysable tannins found in ''T. avicennoides''. See also * Bògòlanfini Bògòlanfini or bogolan (; "mud cloth"; sometimes called mud-dyed cloth or mud-painted cloth in English language, English) is a handmade Malian cotton fabric traditionally dyed with fermented mud. It has an important place in traditional Malian ..., a handmade Malian cotton fabric dyed yellow in wool solution, made from the leaves of ''T. avicennoides'' References External links avicennioides Plants described in 1832 {{Myrtales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ''Terminalia avicennioides'' () is a tree species ... References Hydrolysable tannins Tricarboxylic acids {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrolysable Tannins
A hydrolysable 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 hydrolysable 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. Hydrolysable tannins are hydrolysed 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 (''Castanea s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trihydroxybenzoic Acids
Trihydroxybenzoic acid may refer to the following phenolic acids: * Gallic acid (3,4,5-trihydroxybenzoic acid) * Phloroglucinol carboxylic acid (2,4,6-trihydroxybenzoic acid) O-methylated trihydroxybenzoic acids are: * Eudesmic acid * Syringic acid Syringic acid is a naturally occurring phenolic compound and dimethoxybenzene that is commonly found as a plant metabolite. Natural occurrence Syringic acid can be found in several plants including '' Ardisia elliptica'' and ''Schumannianthus ... Glycosides: * Theogallin {{Chemistry index ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lactones
Lactones are cyclic carboxylic esters. They are derived from the corresponding hydroxycarboxylic acids by esterification. They can be saturated or unsaturated. Lactones are formed by lactonization, the intramolecular esterification of the corresponding hydroxycarboxylic acids. Nomenclature Greek prefixes in alphabetical order indicate ring size. Lactones are usually named according to the precursor acid molecule (''aceto'' = 2 carbon atoms, ''propio'' = 3, ''butyro'' = 4, ''valero'' = 5, ''capro'' = 6, etc.), with a ''-lactone'' suffix and a Greek letter prefix that specifies the number of carbon atoms in the heterocycle — that is, the distance between the relevant -OH and the -COOH groups along said backbone. The first carbon atom after the carbon in the -COOH group on the parent compound is labelled α, the second will be labeled β, and so forth. Therefore, the prefixes also indicate the size of the lactone ring: α-lactone = 3-membered ring, β-lactone = 4-membered, γ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catechols
Catechol ( or ), also known as pyrocatechol or 1,2-dihydroxybenzene, is an organic compound with the molecular formula . It is the ''ortho'' isomer of the three isomeric benzenediols. This colorless compound occurs naturally in trace amounts. It was first discovered by destructive distillation of the plant extract catechin. About 20,000 tonnes of catechol are now synthetically produced annually as a commodity organic chemical, mainly as a precursor to pesticides, flavors, and fragrances. Small amounts of catechol occur in fruits and vegetables. Isolation and synthesis Catechol was first isolated in 1839 by Edgar Hugo Emil Reinsch (1809–1884) by distilling it from the solid tannic preparation catechin, which is the residuum of catechu, the boiled or concentrated juice of ''Mimosa catechu'' ('' Acacia catechu''). Upon heating catechin above its decomposition point, a substance that Reinsch first named ''Brenz-Katechusäure'' (burned catechu acid) sublimated as a white efflore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
