Question

Maltose on hydrolysis gives
A) Mannose +glucose
B) Galactose+glucose
C) Glucose
D) Mannose fructose

Answer 1

Maltose is also known as malt sugar. It is a disaccharide, made up of two D - glucose units. The two units of glucose are linked with an alpha 1,4 glycosidic bond. Maltose dissociates it into its monosaccharide after hydrolysis. Using the hydrolysis reaction of maltose we can determine the products.

Complete step-by-step answer:
Maltose is a disaccharide made up of two alpha D -glucose in which ${\text{C1}}$of the first glucose unit is bonded to ${\text{C4}}$ of the second glucose unit. The bond that joined two alpha glucose units is called 1, 4 glycosidic linkages.

The structure of maltose is as follows:

The molecular formula of maltose is${{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}$. Hydrolysis of maltose in presence of maltase enzyme breaks the 1, 4 glycosidic linkage and gives two molecules of D-glucose. The hydrolysis reaction of maltose is as follows:

${{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}} + {{\text{H}}_{\text{2}}}{\text{O}}\xrightarrow{{{\text{Maltase}}}}2{{\text{C}}_6}{{\text{H}}_{{\text{12}}}}{{\text{O}}_6}$
Maltose D-glucose

Additional Information: Maltose is not used as a sweetener as it is less sweet. It is used to produce alcohol. It is intermediate sugar. It is a basic molecule of starch. It is produced by the digestion of starch.

Thus, the correct option is (C) glucose.

Note: Monosaccharide of maltose is alpha D -glucose. Maltose is formed by alpha 1, 4 glycosidic linkages of two alpha D glucose units. Hydrolysis is a reaction with water. Hydrolysis of maltose dissociates the glycosidic bond and converts disaccharides into monosaccharides. The monosaccharide of maltose is the glucose unit. The enzyme maltase is used as a catalyst in the hydrolysis reaction.