The antioxidant activity of phenolics is mainly due to their re- dox properties, which make them to act as reducing agents, hydro- gen donors, and singlet oxygen quenchers. They also have a metallic chelating potential (Rice-Evans et al., 1995). We deter- mined the antioxidant activities of various extracts using three dif- ferent tests, namely DPPH and ABTS and AAPH assays. There are two major methods to evaluate antioxidant activity: based on Sin- gle Electron Transfer (SET) which measures an antioxidant’s reduc- ing capacity, and Hydrogen Atom Transfer reaction (HAT) which quantifies hydrogen atom donating capacity. The SET methods in- clude ABTS/DPPH assays and HAT methods include AAPH assay (Li et al., 2009). The DPPH assay is a convenient free radical method for evaluating antioxidant capacity, most probably due to its sim- plicity.