Two statements, one Assertion (A) and the other Reason (R) are given. Choose the correct option. Assertion: Maltose, a disaccharide, is a reducing sugar and is obtained by the partial hydrolysis of starch in presence of the enzyme diastase. Reason: Hydrolysis of one mole of Maltose gives one mole each of - D - Glucose and - D-Fructose.

Step-by-step solution

Maltose is a disaccharide composed of two -D-glucose units linked by an (1 4) glycosidic bond. Since the anomeric carbon of one glucose unit is involved in the glycosidic linkage while the other remains free, it exhibits mutarotation and acts as a reducing sugar. It is indeed produced by the partial hydrolysis of starch using the enzyme diastase. Thus, the Assertion (A) is correct. Hydrolysis of one mole of maltose yields two moles of -D-glucose, not one mole of glucose and one mole of fructose. The combination of