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Eupalitin
Eupalitin is an O-methylated flavonol. It can be found in ''Ipomopsis aggregata''. Glycosides Eupalitin 3-O-β-D-galactopyranoside can be isolated from ''Tephrosia spinosa''.Eupalitin 3-O-β-D-galactopyranoside from Tephrosia spinosa. Vanangamudi A., Gandhidasan R. and Raman P. V., Fitoterapia, 1997, vol. 68, no6, p. 560, Eupalin is the eupalitin 30-rhamnoside Rhamnose (Rha, Rham) is a naturally occurring deoxy sugar. It can be classified as either a methyl-pentose or a 6-deoxy-hexose. Rhamnose predominantly occurs in nature in its L-form as L-rhamnose (6-deoxy-L-mannose). This is unusual, since most o .... References O-methylated flavonols {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tephrosia Spinosa
''Tephrosia spinosa'' is a flowering plant species in the genus '' Tephrosia'' native from India, Sri Lanka, Malaysia and Indonesia. Eupalitin 3-O-β-D-galactopyranoside, a glycoside In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. ... of the flavonol eupalitin, can be isolated from ''T. spinosa''. Tephrospinosin ( 3′,5′-diisopentenyl-2′,4′-dihydroxychalcone), a prenylated chalcone, can be isolated from the root.A prenylated chalcone from the roots of Tephrosia spinosa. V.M. Sharma and P.S. Rao, Phytochemistry, August 1992, Volume 31, Issue 8, Pages 2915–2916, References External links spinosa Plants described in 1807 {{Millettieae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O-methylated Flavonol
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 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-methyltransferase * Methylquercet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ipomopsis Aggregata
''Ipomopsis aggregata'' is a species of biennial flowering plant in the phlox family (Polemoniaceae), commonly known as scarlet trumpet, scarlet gilia, or skyrocket because of its scarlet red flowers with lobes curving back as if blown back by rocketing through the air.Sierra Nevada Wildflowers, Karen Wiese, 2nd ed., 2013, p. 107 Description ''Ipomopsis aggregata'' has characteristic red, trumpet-shaped flowers and basal leaves stemming from a single erect stem. Depending on elevation, height can range from 12 inches, in Rocky Mountain alpine areas, to over 5 feet, in areas of southern Texas. Trumpet flowers can range from white, red, orange-red, and pink. Pink flowers are especially common in high mesa areas of Colorado, such as the Flat Tops, Grand Mesa, or the Uncompahgre Plateau. Yellow flowers have been reported for plant but are extremely rare. Fernlike leaves are low to the ground, helping encourage warmth in colder areas, and have silver specks and a fine white pubesce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupatolitin
Eupatolitin is a chemical compound. It is an ''O''-methylated flavonol, a type of flavonoid. Eupatolitin can be found in ''Brickellia veronicaefolia'' and in ''Ipomopsis aggregata''. Glycoside Eupatolin is a eupatolitin glycoside containing a rhamnose attached at the 3 position. It can be found in ''Eupatorium ligustrinum ''Ageratina ligustrina'', the (privet-leaved ageratina or privet-leaved snakeroot, is Mesoamerican species of evergreen flowering shrub in the sunflower family. It is widespread across much of Mexico and Central America from Tamaulipas to Costa ...''. References External links Eupatolotinon www.genome.jp O-methylated flavonols Flavonoids found in Asteraceae Catechols {{phenol-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patuletin
Patuletin is an O-methylated flavonol. It can be found in the genus ''Eriocaulon''. Glycosides Patuletin glycosides can be found in ''Ipomopsis aggregata''. Patuletin-3-O-rutinoside can be isolated from the aerial parts of ''Echinacea angustifolia''. Patuletin acetylrhamnosides can be isolated from ''Kalanchoe brasiliensis ''Kalanchoe brasiliensis'', the , saião, folha-da-costa or coerama, is a plant species in the genus ''Kalanchoe ''Kalanchoe'' , also written ''Kalanchöe'' or ''Kalanchoë'', is a genus of about 125 species of tropical, succulent plants in t ...''. References O-methylated flavonols {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eupalin
Eupalin is a flavonol. It is the eupalitin 3-O- rhamnoside. It can be isolated from ''Eupatorium ligustrinum ''Ageratina ligustrina'', the (privet-leaved ageratina or privet-leaved snakeroot, is Mesoamerican species of evergreen flowering shrub in the sunflower family. It is widespread across much of Mexico and Central America from Tamaulipas to Costa ...''.The structures of eupalin and eupatolin. Two new flavonol rhamnosides isolated from Eupatorium ligustrinum D.C. L. Quijano, F. Malanco and Tirso Ríos, Tetrahedron, Volume 26, Issue 12, 1970, pages 2851-2859, References O-methylated flavonols Flavonol rhamnosides {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhamnoside
Rhamnose (Rha, Rham) is a naturally occurring deoxy sugar. It can be classified as either a methyl-pentose or a 6-deoxy-hexose. Rhamnose predominantly occurs in nature in its L-form as L-rhamnose (6-deoxy-L-mannose). This is unusual, since most of the naturally occurring sugars are in D-form. Exceptions are the methyl pentoses L-fucose and L-rhamnose and the pentose L-arabinose. However, examples of naturally-occurring D-rhamnose include some species of bacteria, such as ''Pseudomonas aeruginosa'' and ''Helicobacter pylori''. Rhamnose can be isolated from Buckthorn (''Rhamnus''), poison sumac, and plants in the genus ''Uncaria''. Rhamnose is also produced by microalgae belonging to class Bacillariophyceae (diatoms). Rhamnose is commonly bound to other sugars in nature. It is a common glycone component of glycosides from many plants. Rhamnose is also a component of the outer cell membrane of acid-fast bacteria in the ''Mycobacterium'' genus, which includes the organism that caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
