EN
The aim of the study was to estimate antioxidant potential of quercetin, a plant component of food products. Two analytical methods, Total Antioxidant Status (TAS) and Peroxyl Radical Trapping Capacity (PRTC) were used. Quercetin was shown to be an antioxidant. Its antioxidant potential is however, much lower than that of vitamin C, but considerably higher than that of Trolox (a water-soluble vitamin E analogue). The antioxidant properties of quercetin seem to depend on its chemical structure and is associated with OH groups found in the molecule.