Chapter 18, Problem 18.117EP

(a)

Interpretation Introduction

Interpretation: The validation for the presence of an $\alpha \left(1\to 4\right)$ glycosidic linkage in maltose has to be stated.

Concept introduction: Maltose is a disaccharide and it is also known as malt sugar.  It is commonly found in baby foods and malted milk.  Two glucose units are present in maltose joined together by $\alpha \left(1\to 4\right)$ glycosidic linkage.

(b)

Interpretation Introduction

Interpretation: The validation for the presence of an $\alpha \left(1\to 4\right)$ glycosidic linkage in cellobiose is to be stated.

Concept introduction: Like maltose, cellobiose is a disaccharide and it contains two monosaccharide units of D-glucose joined together by $\beta \left(1\to 4\right)$ glycosidic linkage.

(c)

Interpretation Introduction

Interpretation: The validation for the presence of an $\alpha \left(1\to 4\right)$ glycosidic linkage lactose has to be stated.

Concept introduction: Lactose is a disaccharide and it contains two monosaccharide units, D-galactose and D-glucose which are joined together by $\beta \left(1\to 4\right)$ glycosidic linkage.

(d)

Interpretation Introduction

Interpretation: The validation for the presence of an $\alpha \left(1\to 4\right)$ glycosidic linkage in sucrose disaccharide is to be stated.

Concept introduction: Sucrose is a disaccharide and it contains two monosaccharide units, Fructose and Glucose.  These monosaccharide units are joined together by $\alpha ,\beta \left(1\to 2\right)$ glycosidic linkage.