What is the difference between reducing and non reducing sugar?
Benedict's Test is one of the popular tests conducted in identifying reducing and non-reducing sugars. Reducing sugars, like glucose can reduce copper hydroxide from the reagents used in Benedict's solution in the presence of heat. In a positive test with Benedict's a brick red colour is observed
This is because the reducing sugars have a free oH group at their anomeric carbon that can cause the reduction of mild oxidizing agents like fehling and benedict solution.In non reducing sugars this oH is involved in glycosidic bond formation.