Question

What are non reducing sugars and how can we test for them?

Answer 1

A nonreducing sugar is a carbohydrate that is not oxidized by a weak oxidizing agent (an oxidizing agent that oxidizes aldehydes but not alcohols, such as the Tollen's reagent) in basic aqueous solution.it can be tested using 

Benedict's test is used to determine if the sugar sample is non – reducing or reducing in nature. If Benedict's solution is added to the sugar sample and we see no change in the color, then the sugar sample is non-reducing. And If we see a change in the color of the sugar sample, then it is reducing.

Blue: No non – reducing sugars present

Green: Traces of non – reducing sugars present

Orange: Moderate amount of reducing sugars ...