Identify the saccharide from the Haworth projection shown below
A
Lactose
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B
Maltose
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C
Sucrose
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D
Glucose
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Solution
The correct option is A Lactose It is composed of β-D-galactose (left) and β-D-glucose (right). There is a β-glycosidic linkage between the C1 of galactose and C4 of glucose unit. It is a non-reducing sugar.