glycoside

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Related to Glycone: aglycone

glycoside

 [gli´ko-sīd]
any compound containing a carbohydrate molecule (sugar), particularly any such natural product in plants, convertible, by hydrolytic cleavage, into a sugar and a nonsugar component (aglycone), and named specifically for the sugar contained, such as fructoside (fructose), glucoside (glucose), or pentoside (pentose).
cardiac glycoside any of a group of glycosides occurring in certain plants (Digitalis, etc.), having a characteristic action on the contractile force of the heart muscle.

gly·co·side

(glī'kō-sīd),
Condensation product of a sugar with any other radical involving the loss of the OH of the hemiacetal or hemiketal of the sugar, leaving the anomeric carbon as the link; thus, condensation through the carbon with an alcohol, which loses its hydrogen on its hydroxyl group, yields an alcohol-glycoside (or a glycosido-alcohol); links with a purine or pyrimidine -NH- group yield glycosyl (or N-glycosyl) compounds.

glycoside

(glī′kə-sīd′)
n.
Any of a group of organic compounds, occurring abundantly in plants, that yield a sugar and one or more nonsugar substances on hydrolysis.

gly′co·sid′ic (-sĭd′ĭk) adj.

glycoside

Biochemistry
A molecule formed from the condensation of either a furanose or a pyranose with another molecule as an acetal nitrogen glycoside or phosphate ester glycoside; cardiac glycosides include digitoxin, digoxin and ouabain.

Herbal medicine
Any of a number of medicinally active compounds produced by plants, which include hydrocyanic (prussic acid), which gives cough syrup its bitter almond flavour, digitoxin, a cardioactive agent, and salicin, the basis for salicylic acid.

glycoside

Pharmacology A molecule formed from the condensation of either a furanose or a pyranose with another molecule as an acetal, nitrogen glycoside, or phosphate ester glycoside; cardiac glycosides include digitoxin, digoxin, ouabain

gly·co·side

(glī'kō-sīd)
Condensation product of a sugar with any other radical involving the loss of the H of the hemiacetal or hemiketal OH of the sugar, leaving the O of this OH as the link.

glycoside

an acetal derivative of a sugar that, on hydrolysis by enzymes or acids, gives rise to a sugar. Glycosides containing glucose are called glucosides, those with galactose are called galactosides. They render unwanted substances chemically inert or form food reserves such as GLYCOGEN.

Glycoside

An herbal carbohydrate that exerts powerful effect on hormone-producing tissues. The glycoside breaks down into a sugar and a non-sugar component.
Mentioned in: Echinacea

gly·co·side

(glī'kō-sīd)
Condensation product of a sugar with any other radical involving the loss of the OH of the hemiacetal or hemiketal of the sugar.
References in periodicals archive ?
The nice thing about juice is that its aromatic elements are largely tied up as glycones. That means they are much bigger than they will be after fermentation liberates them.
Pharmacological effect of triterpene glycosides is connected with the aglycone whereas glycones are responsible for solubility of the molecules in water and influence the absorbability and penetration through the membranes [37].
An experiment with mice showed that fermentation converts glycones into the corresponding aglycones, which are absorbed more readily and efficiently (Kishida et al., 2000).
Seventeen flavonoid glycosides and 12 a glycones were isolated and identified from A.
Roots of the plant are usually rich in AQs, which most often occur as glycones and glycosides.