A new kind of antioxidant test

Abstract

A new kind of antioxidant test has been developed. The test is based on the indigo carmine decomposition in the presence of an organic matter, radical initiator and copper ions in the reaction mixture. The decomposition can be inhibited by other added compounds followed by different absorbance decrease which is considered as a stage of antioxidant activity. Antioxidant capacity of phenolic compounds, aminoacids, ethanol, asorbic acid and EDTS was measured during copper-cata-lysed-maltose decomposition in the presence of peroxodisulfate as a radical initiator.