Antioxidant activity of yoghurt supplemented with natural additives

The aims of this study were the estimation of difference in physiochemical properties and antioxidant activity of yoghurts supplemented by different natural additives. In addition, the changes in physiochemical properties and antioxidant activity during five weeks storage were performed. The change in antioxidant activities was evaluated using the ABTS radical cations decolorizing assay. The statistical analysis showed that the yoghurt samples with the natural supplement have higher antioxidant activity than the plain yoghurt. In addition, the storage period affect the yoghurt properties by increasing its acidity and antioxidant activities by increasing the storage time. Furthermore, the plain and supplemented yoghurts are still consumable until the fifth week of storage but the favourable time to consume it with its higher antioxidant capacity is the 3rd week of storage.