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Capensinidin
Capensinidin (Cp) is an O-methylated anthocyanidin. It is a water-soluble, blue-red plant dye. It is a 5-methoxy analog of malvidin, has been obtained from ''Plumbago capensis ''Plumbago auriculata'', the cape leadwort, blue plumbago or Cape plumbago, is a species of flowering plant in the family Plumbaginaceae, native to South Africa."Botanica. The Illustrated AZ of over 10000 garden plants and how to cultivate them" ...''. References O-methylated anthocyanidins">--> O-methylated anthocyanidins {{organic-compound-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
O-methylated Anthocyanidin
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] |
Malvidin
Malvidin is an O-methylated anthocyanidin, the 3',5'-methoxy derivative of delphinidin. As a primary plant pigment, its glycosides are highly abundant in nature. Natural occurrences Malvidin is responsible for the blue color found in petals of the ''Primula'' plants of the ''polyanthus'' group. Blue flowers of the blue pimpernel ('' Anagallis monelli'') have also a higher concentration of malvidin. It is responsible primarily for the color of red wine, ''Vitis vinifera'' being one of its sources. It is also present in other berries, such as blueberries (''Vaccinium corymbosum'') or the saskatoon berries (''Amelanchier alnifolia''). Chemistry Slightly acidic and neutral solutions of malvidin are characteristically of a red color, while basic solutions of malvidin yield a blue color. The breakdown of malvidin releases syringic acid. Use as a marker in archaeology The breakdown of malvidin releases syringic acid as revealed in the examination of jars containing shedeh, a dr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumbago Capensis
''Plumbago auriculata'', the cape leadwort, blue plumbago or Cape plumbago, is a species of flowering plant in the family Plumbaginaceae, native to South Africa."Botanica. The Illustrated AZ of over 10000 garden plants and how to cultivate them", p 691. Könemann, 2004. Nico Vermeulen:"The Complete Encyclopedia of Container Plants", p. 216. Rebo International, Netherlands, 1998. The specific epithet ''auriculata'' means "with ears", referring to the shape of the leaves. Description ''Plumbago auriculata'' is an evergreen shrub, often grown as a climber, ascending rapidly to tall by wide in nature, though much smaller when cultivated as a houseplant. The leaves are a glossy green and grow to long. The stems are long, thin, and climbing. The leaves alternate and are 2–5 cm. The five petals are about 2 cm wide and can be pale blue, blue or violet in color. There also variations with white (''P. auriculata'' var. ''alba'') or deep blue (''P. auriculata'' 'Royal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
