The type of chemical linkage between the monosaccharide units of disaccharides, oligosaccharides, and polysaccharides, which is formed by the removal of a molecule of water (i.e. a condensation reaction). The bond is normally formed between the carbon-1 on one sugar and the carbon-4 on the other. An α-glycosidic bond is formed when the –OH group on carbon-1 is below the plane of the glucose ring and a β-glycosidic bond is formed when it is above the plane. Cellulose is formed of glucose molecules linked by 1-4 β-glycosidic bonds, whereas starch is composed of 1-4 α-glycosidic bonds.
Glycosidic bond
The type of chemical linkage between the monosaccharide units of disaccharides, oligosaccharides, and polysaccharides, which is formed by the removal of a molecule of water (i.e. a condensation reaction). The bond is normally formed between the carbon-1 on one sugar and the carbon-4 on the other (see illustration). An α-glycosidic bond is formed when the –OH group on carbon-1 is below the plane of the glucose ring and a β-glycosidic bond is formed when it is above the plane. Cellulose is formed of glucose molecules linked by 1-4 β-glycosidic bonds, whereas starch is composed of 1-4 α-glycosidic bonds.
Formation of a glycosidic bond
- Federal Reserve System
- Federal Trade Commission
- Federation of Rhodesia and Nyasaland
- Federov stereographic net
- FEDI
- FEED
- feed
- feed aggregator
- feedback
- feedback control
- feedback control loop
- feedback oscillator
- feedback queue
- feedback register
- feeder
- feedforward control
- feed-forward register
- feeding
- feed point
- feedpoint impedance
- feed rate
- feedstock
- feedthrough
- feeling
- Fehling’s test