Fehling's test


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Related to Fehling's test: Seliwanoff's test

Fehling's test

a procedure used to detect the presence of REDUCING SUGARS in an unknown solution. Two solutions are mixed: Fehling's solution A containing copper tartrate (Cu(II)), and Fehling's solution B containing sodium hydroxide. The mixture is then added to the test solution and boiled. An orange-red precipitate of copper oxide (CU(I)) indicates the presence of a reducing sugar.
References in periodicals archive ?
Test for Carbohydrate * Molisch's test + + + * Fehling's test + [+ or -] - * Barfoed's test + - - 3.
The results from the phenol-sulfuric acid test, a-naphthol reaction, iodination reaction, Fehling's test, carbazole reaction, Fe[Cl.sub.3] reaction, and Coomassie brilliant blue test were presented.
c) Fehling's Test for Free Reducing Sugar: Small quantity of each extract was dissolved in 5 ml of distilled water and filtered.