2.6. Determination Procedure
Measurement of Total Phenol Othman et al. (2007) were modified. Activity of antioxidant formulas were
analyzed using modified iron thiocyanate method (Yurttas et al., 2000). This determination is based on the
formation of peroxide as a product of oxidation of linoleic acid. Percent oxidation was calculated by comparing the
absorbance value of the test sample (As) with control absorbance value (A ctrl) multiplied by 100%, which is
expressed by the formula: