All data are presented as means ± SD for at least four replications for each prepared sample. Statistical analysis was performed based on one way Analysis of variance (ANOVA) at confidence level 95% using SPSS (Statistical Program for Social Sciences, SPSS Corporation, Chicago, IL) version 12.0 for Windows. Significances of differences were conducted with a Tukey-HSD. Linear regression to correlate between total phenolics as well as total flavonoid with antioxidant activity was carried using Excel 2003.