n Special test designed to detect the pressure of reducing sugars, and it may also be applied to the products of hydrolysis of certain gums, starch, etc. Benedict’s reagent consists of a solution of sodium citrate and sodium carbonate in water, to which a small quantity of copper sulfate is subsequently added. An orange precipitate is obtained when a few milliliters of the reagent is added to the solution of the suspected compound, if a reducing sugar is present. (Whistler JN, BeMiller JN (eds) (1992) Industrial gums: polysaccharides and their derivatives. Elsevier Science and Technology Books, New York).