Glycosidic linkage between $$C_1$$ of $$\alpha$$-glucose and $$C_2$$ of $$\beta$$-fructose is found in

We need to identify the disaccharide that has a glycosidic linkage between $$C_1$$ of $$\alpha$$-glucose and $$C_2$$ of $$\beta$$-fructose.

Recall the structures of common disaccharides

Maltose: Made of two glucose units linked by $$\alpha(1 \rightarrow 4)$$ glycosidic bond.

Sucrose: Made of one $$\alpha$$-glucose and one $$\beta$$-fructose unit linked by a glycosidic bond between $$C_1$$ of $$\alpha$$-glucose and $$C_2$$ of $$\beta$$-fructose.

Lactose: Made of one $$\beta$$-galactose and one glucose unit linked by $$\beta(1 \rightarrow 4)$$ glycosidic bond.

Amylose: A polysaccharide (not a disaccharide) made of glucose units with $$\alpha(1 \rightarrow 4)$$ linkages.

Identify the correct answer

Sucrose has the glycosidic linkage between $$C_1$$ of $$\alpha$$-glucose and $$C_2$$ of $$\beta$$-fructose. This is specifically an $$\alpha,\beta(1 \rightarrow 2)$$ glycosidic bond. Since both anomeric carbons are involved in the bond, sucrose is a non-reducing sugar.

The correct answer is Option B.