What is the difference between reducing and non-reducing sugars? please answer in points?

Question

What is the difference between reducing and non-reducing sugars? please answer in points?

Answer 1

Reducing sugars are so-called because they have the capacity to act as a reducing agent.

Reducing sugars contain a -CH=O aldehyde or =C=O ketone group which can reduce to an alcohol (CH2-OH) group. Classically the reagent needed is Fehling's solution, containing alkaline copper sulphate. Most sugars encountered in biology are reducing, with the notable exception of sucrose.

In medical practice this test was used to detect glucose in the urine of diabetics, but is now a defunct test for diabetes. It is still used to detect sugars in rarer metabolic disorders such as fructosuria.