Screening of total flavonoid, phenol contents and antioxidant capacities of some Achillea L. species growing in Turkey

The aim of the present study was to investigate the antioxidant capacities of the infusions prepared from 15 Achillea L. (Asteraceae) species growing in Turkey. The antioxidant capacities of these species were evaluated by using different methods (total antioxidant capacity, free radical and OH • radical scavenging capacity, H2O2 reducing power). Total flavonoid content was determined by using the aluminium-chloride method. Total phenol content was determined by the modified colorometric method using the Folin-Ciocalteu Reagent. Our results clearly demonstrate that all infusions have antioxidant capacity. A. millefolium ssp. pannonica has the highest antioxidant activity with higher value than 10 mM ?-tocopherol/100 ml. Moreover, A. grandifolia, A biebersteinii, A. schisckinii, A. nobilis ssp. neilrechii has ability as 8-8.7 mM ?-tocopherol/100 ml. These results are consistent with total flavonoid and phenol contents.