Folin–Ciocalteu reagent (0.125 ml) was added to the solution and allowed to react for 6 min. Then, 1.25 ml of 7% sodium carbonate solution was aliquoted into the test tubes
Folin–Ciocalteureagent (0.125 ml) was added to the solution and allowed to reactfor 6 min. Then, 1.25 ml of 7% sodium carbonate solution was aliquotedinto the test tubes