In disaccharides, if the reducing groups of monosaccharides, i.e., aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?

Options

A.
B.
C.
D.

Answer

B

Explanation

This structure represents sucrose in which `alpha`- D-glucose and `beta`-D fructose is attached to each other by `C_(1)-C_(2)` glycosidic linkage. Since reducing groups of glucose and fructose are involved in glycosidic bond formation, this is considerred as non-reducing sugar.