eases (Verzelloni et al., 2007). Numerous crude extracts and pure natural compounds from fruits were reported to have antioxidant and radical-scavenging activities. Within the antioxidant compounds, flavonoids and phenolics, with a large distribution in nature, have been studied (Li et al., 2009). Phenolics or polyphenols, including flavonoids have received considerable attention because of their physiological functions such as antioxidant, antimutagenic and antitumor activities (Othman et al., 2007).