Mechanism change in estimating of antioxidant activity of phenolic compounds

► The influence of buffer components on the estimation of antioxidant activity is presented. ► The change of mechanism scavenging process with the change of pH is discussed. ► The paper describes the impact of metal ions on the blocking of the scavenging process of DPPH. ► The discussion is based on the results obtained for the exemplary DPPH
- /BHT system.