Which Among the Following is a non-reducing sugar?a) Lactoseb) Maltosec) Sucrosed) Fructose

Answer: (c)

Explanation: Because the anomeric carbon in monosaccharides is engaged in glycoside or acetal production, sucrose is a non-reducing sugar. As a result, it lacks a free -CHO group.

Sugars that reduce and those that don’t

• Any carbohydrate that may be oxidised and cause the reduction of other compounds without being hydrolyzed is referred to as reducing sugar.

• Any carbohydrate that can’t be oxidised and doesn’t reduce other molecules is classified as a non-reducing sugar.

• Reducing sugars are carbs with free aldehyde or ketone groups that can act as reducing agents.

• Due to the absence of free aldehyde or ketone groups, non-reducing sugars cannot act as reducing agents.

• Various assays can be used to determine whether reducing sugars are present or absent.

• Various tests have failed to detect the presence of the substance.