Composition and anti-oxidant, anti-cancer and anti-inflammatory activities of Artemisia herba-alba, Ruta chalpensis L. and Peganum harmala L.

► A good biological activities (from A. herba-alba, R. chalpensis and P. harmala). ► Antioxidant capacity, anti-inflammatory and anti-cancer activities were evaluated. ► A. herba-alba extract showed the highest inhibition rate of NO release (72% at 150 mg/L). ► Tannins, flavonoids correlates to anti-inflammatory activity (0.95, 0.85 respectively). ► Correlations tannins/anticancer activity (0.94(Hep2), 0.99(RT112) and 0.95(K562)).