Total flavonoids were higher in GB3 in ME and n-B, respectively, in comparison to GB2 and GB4. Higher flavonoid content was in EA for GB4 and in WE for GB5 (Fig. 1A). Antioxidant activity in ABTS was higher in ME and WE for GB2, respectively. Subsequently, GB1 gave higher antioxidant activity in EA and AW, respectively, while GB3 showed maximum antioxidants in n-B. Based on DPPH assay, GB3 exhibited highest values for antioxidants in n-B, AW and WE, respectively. For GB1 and GB5, highest values were recorded in EA and ME, respectively. In FRAP assay, GB5 showed higher activity in AW and WE, respectively; GB3 in n-B; GB2 in EA and GB1 in ME (Fig. 1B)