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Retusin (isoflavone)
Retusin is an O-methylated isoflavone, a type of flavonoid. It can be found in Fabaceae species like ''Dipteryx odorata'', in ''Dalbergia retusa'' and in '' Millettia nitida''. It can also be found in ''Maackia amurensis ''Maackia amurensis'', commonly known as the Amur maackia, is a species of tree in the family Fabaceae that can grow 15 metres (49 ft) tall. The species epithet and common names are from the Amur River region, where the tree originated; it o ...'' cell cultures.Isoflavonoid production by callus cultures of Maackia amurensis. S.A Fedoreyev, T.V Pokushalov, M.V Veselova, L.I Glebko, N.I Kulesh, T.I Muzarok, L.D Seletskaya, V.P Bulgakov and Yu.N Zhuravlev, Fitoterapia, 1 August 2000, Volume 71, Issue 4, Pages 365–372, References --> O-methylated isoflavones Catechols 4-Methoxyphenyl compounds {{aromatic-stub}--> O-methylated isoflavones Catechols 4-Methoxyphenyl compounds {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O-methylated Isoflavone
The O-methylated flavonoids or methoxyflavonoids are flavonoids with methylations on hydroxyl groups (methoxy bonds). O-methylation has an effect on the solubility of flavonoids. Enzymes O-methylated flavonoids formation implies the presence of specific O-methyltransferase (OMT) enzymes which accept a variety of substrates. Those enzymes mediate the O-methylation on a specific hydroxyl group, like on 4' (example in ''Catharanthus roseus'') or 3' (example in rice) positions. Those positions can be Arene substitution patterns, ortho, meta, para and there can be a special 3-O-methyltransferase for the 3-OH position. Calamondin orange (''Citrus mitis'') exhibits all of those activities. Plant enzymes * Apigenin 4'-O-methyltransferase * 8-hydroxyquercetin 8-O-methyltransferase * Isoflavone 4'-O-methyltransferase * Isoflavone 7-O-methyltransferase * Isoliquiritigenin 2'-O-methyltransferase * Isoorientin 3'-O-methyltransferase * Kaempferol 4'-O-methyltransferase * Luteolin O-methyltransfer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dipteryx Odorata
''Dipteryx odorata'' (commonly known as "cumaru", "kumaru", or "Brazilian teak") is a species of flowering tree in the pea family, Fabaceae. The tree is native to Northern South America and is semi-deciduous. Its seed In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds ...s are known as tonka beans, but sometimes spelled tonkin beans or tonquin beans (not related to Tonkin). The seeds are black and wrinkled and have a smooth, brown interior. They have a strong fragrance similar to Galium odoratum, sweet woodruff due to their high content of coumarin. The word ''tonka'' is taken from the Galibi (Carib) tongue spoken by natives of French Guiana; it also appears in Tupi language, Tupi, another language of the same region, as the name of the tree. The old genus name, ''Coumarouna'', was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dalbergia Retusa
''Dalbergia retusa'' (Caviuna, Cocobolo, Cocobolo Prieto, Funeram, Granadillo, Jacarandáholz, Nambar, ñamba, Nicaraguan Rosewood, Palisander, Palissandro, Palo Negro, Pau Preto, Rosewood, Urauna) is a plant species in the family'' Fabaceae ''. It is found in Pacific regions of Central America, ranging from Panama to southwestern Mexico. It produces the cocobolo wood. It is a fair-sized tree, reported to reach 20–25 m in height. This is probably the species contributing most of the wood in the trade. Because of the wood's great beauty and high value, the trees yielding this wood have been heavily exploited and are now rare outside national parks, reserves, and plantations. Retusin, an O-methylated flavonoid, is produced by the tree. See also * Na 'Aina Kai Botanical Gardens * Rosewood Rosewood is any of a number of richly hued hardwoods, often brownish with darker veining, but found in other colours. It is hard, tough, strong, and dense. True rosewoods come from tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millettia Nitida
''Callerya nitida'' is a species of flowering plant in the family Fabaceae, native to south-central and southeast mainland China, Hainan and Taiwan. It was first described by George Bentham in 1842 as ''Millettia nitida''. ''Callerya nitida'' produces a number of compounds among which genistein-8-C-β-D-apiofuranosyl-(1→6)-O-β-D-glucopyranoside, calycosin, isoliquiritigenin, formononetin, gliricidin, 8-O-methylretusin, dihydrokaempferol, biochanin, afromosin and hirsutissimiside F interact with thrombin, while sphaerobioside, formononetin-7-O-β-D-apiofuranosyl-(1→6)-O-β-d-glucopyranoside, genistein-5-methylether-7-O-α-L-rhamnopyranosyl-(1→6)-O-β-D-glucopyranoside, retusin-7,8-O-β-D-diglucopyranoside, symplocoside, ononin, genistin, afromosin-7-O-β-D-glucopyranoside, lanceolarin, liquiritigenin Liquiritigenin is a flavanone that was isolated from ''Glycyrrhiza uralensis'', and is found in a variety of plants of the Glycyrrhiza genus, including ''Glycyrr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maackia Amurensis
''Maackia amurensis'', commonly known as the Amur maackia, is a species of tree in the family Fabaceae that can grow 15 metres (49 ft) tall. The species epithet and common names are from the Amur River region, where the tree originated; it occurs in northeastern China, Korea, and Russia. Amur maackia tolerates severe dryness, cold and heavy soils. More interesting than the summer flowers are the unfolding buds in spring which appear silvery and showy like flowers with frost on them. Named for Richard Otto Karlovich Maack (Richard Maack), a 19th-century Siberian explorer who discovered the tree in the Amur River region on the border between Siberia and China. Chemistry The isoflavones daidzein, retusin, genistein and formononetin and the pterocarpans maackiain and medicarpin can be found in ''M. amurensis'' cell cultures. The quinolizidine alkaloids tetrahydroleontidine and 11-epileontidane have been isolated from the species (their only natural source so far).https://ch ... [...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] |
