Which of the following is a non-reducing saccharide?
A
Glucose
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B
Maltose
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C
Sucrose
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D
Lactose
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Solution
The correct option is B Sucrose The main non-reducing sugar is sucrose, or more commonly known as table sugar. Sucrose is a glucose carbon connected at the anomeric carbon to an anomeric carbon on a fructose. Since both anomeric carbons are involved in the bond, neither one has an OH group, so it is not a reducing sugar.