Lactose: Chemical Derivatives

  • L. A. W. Thelwall


Lactose (4-O-β-d-galactopyranosyl-d-glucose) 1 is a naturally occurring carbohydrate found in the milk of most mammals. It is composed of d-galactose and d-glucose and is therefore termed a disaccharide. A number of disaccharides exist in nature, of which lactose is one of the most abundant. The individual components of a disaccharide may be joined to each other in a variety of ways. In lactose, the inter-sugar link is between the reducing (anomeric) centre of galactose and the C-4 hydroxyl group of glucose. This type of linkage results in a reducing disaccharide, as the glucose sugar in lactose has a potential aldehyde function. Sucrose, for example, is a non-reducing disaccharide as it is linked via the anomeric centres of its components, glucose and fructose.


Chemical Derivative Cerium Ammonium Nitrate Lactobionic Acid Cyclic Acetal Anomeric Centre 
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© Springer Science+Business Media Dordrecht 1997

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  • L. A. W. Thelwall

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