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What are reducing and non-reducing sugars?

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The poster child for a non-reducing sugar is sucrose, a.k.a. table sugar. Sucrose is a disaccharide of glucose and fructose. See if you can find a hemiacetal in its structure, below: There isn't one! read more

Difference between Reducing and Non-reducing sugars Any carbohydrate which is capable of being oxidized and causes the reduction of other substances without having to be hydrolysed first is known as reducing sugar, but those which are unable to be oxidised and do not reduce other substances are known as non-reducing sugars. read more

Sugars that can be oxidised by mild oxidising agents are called reducing sugars. A non-reducing sugar is a sugar that is NOT oxidised by mild oxidising agents. All common monosaccharides are reducing sugars. The disaccharides maltose and lactose are reducing sugars. The disaccharide sucrose is a non-reducing sugar. read more

Non-reducing sugars do not have an OH group attached to the anomeric carbon so they cannot reduce other compounds. All monosaccharides such as glucose are reducing sugars. A disaccharide can be a reducing sugar or a non-reducing sugar. Maltose and lactose are reducing sugars, while sucrose is a non-reducing sugar. read more

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