Question
Explain the structure of maltose.
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Answer
Maltose is another disaccharide obtained by partial hydrolysis of starch or made of two units of Dglucose. In maltose, C-I of one $\alpha$-D-glucose is linked to C-4 of another $\alpha$-D-glucose molecule by glycosidic linkage. The glucose ring which uses its hydroxyl group at $C -1$ is $\alpha-1 \rightarrow 4$ glycosidic linkage. It is a reducing sugar because a free aldehyde group can be produced at $C _1$ of second glucose molecule. Maltose on hydrolysis with dilute acids gives glucose.
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