Kaempferol 3-O-β-D-rutinoside

	Kaempferol 3-O-β-D-rutinoside Kaempferol-3-''O''-rutinoside is a bitter-tasting flavonol 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. .... It can be isolated from the rhizomes of the fern '' Selliguea feei''. References External links Kaempferol-3-O-rutinoside at www.phenol-explorer.eu Flavonol rutinosides Bitter compounds {{aromatic-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Rutinoside Rutinose is the disaccharide also known as 6-''O''-α-L- rhamnosyl-D-glucose (C12H22O10) that is present in some flavonoid glycosides. It is prepared from rutin by hydrolysis Hydrolysis (; ) is any chemical reaction in which a molecule of water breaks one or more chemical bonds. The term is used broadly for substitution reaction, substitution, elimination reaction, elimination, and solvation reactions in which water ... with the enzyme rhamnodiastase. References * Disaccharides Deoxy sugars {{Carbohydrate-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	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. These can be activated by enzymatic, enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. Several species of ''Heliconius'' butterfly are capable of incorporating these plant compounds as a form of chemical defense against predators. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. In formal terms, a glycoside is any molecule in which a sugar group is bonded through its anomeric carbon to another group via a glycosidic bond. Glycosides can be linked by an O- (an ''O-glycoside''), N- (a ''glycosylamine''), S-(a ''thioglycoside''), or C- (a ''C-glycoside'') glycosidic bond. Accord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Selliguea Feei ''Selliguea feei'' is a fern belonging to the genus '' Selliguea'' in the family Polypodiaceae. This fern can be collected in Indonesia. The species name ''feei'' commemorates the botanist Antoine Laurent Apollinaire Fée Antoine Laurent Apollinaire Fée was a French botanist who was born in Ardentes, 7 November 1789, and died in Paris on 21 May 1874. He was the author of works on botany and mycology, practical and historical pharmacology, Darwinism, and his exper .... Biochemistry Selligueain A is an A type proanthocyanidin trimer and a sweetener that can be extracted from the rhizome of the plant. Kaempferol-3-O-β-D-glucopyranoside-7-O-α-L-rhamnopyranoside, a known bitter-tasting flavonoid glycoside, (-)-4β-carboxymethyl epiafzelechin (3'-deoxydryopteric acid), epiafzelechin-(4β→8, 2β→O→7)-epiafzelechin-(4β→8)-3'-deoxydryopteric acid methyl ester ( selligueain B), and (+)-afzelechin-O-β-4'-D-glucopyranoside were also isolated from the rhizomes of Selliguea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
picture info	Flavonol Rutinosides Flavonols are a class of flavonoids that have the 3-hydroxyflavone backbone (IUPAC name: 3-hydroxy-2-phenylchromen-4-one). Their diversity stems from the different positions of the phenolic –OH groups. They are distinct from flavanols (with "a") such as catechin, another class of flavonoids, and an unrelated group of metabolically important molecules, the flavins (with "i"), derived from the yellow B vitamin riboflavin. Flavonols are present in a wide variety of fruits and vegetables. In Western populations, estimated daily intake is in the range of 20–50 mg per day for flavonols. Individual intake varies depending on the type of diet consumed. The phenomenon of dual fluorescence (due to excited state intramolecular proton transfer or ESIPT) is induced by tautomerism of flavonols (and glucosides) and could contribute to plant UV protection and flower colour. Besides being a subclass of flavonoids, flavonols are suggested by a study of cranberry juice to play a rol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]