Question
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?
A.
B.
C.
D.
Answer :
Solution :
In option (B), two monosaccharides are held together by a glycosidic linkage between $$C{\text{ - }}1$$ of $$\alpha $$ - glucose and $$C{\text{ - 2}}$$ of $$\beta $$ - fructose.
In option (B), two monosaccharides are held together by a glycosidic linkage between $$C{\text{ - }}1$$ of $$\alpha $$ - glucose and $$C{\text{ - 2}}$$ of $$\beta $$ - fructose.
