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Objective:To study the antioxidant properties of crude extract of different Asteraceae plants.Methods:The antioxidant properties of six extracts were evaluated using different antioxidant tests,including free radical scavenging,reducing power,metal chelation,superoxide anion radical scavenging,total antioxidant capacity and inhibition of lipid peroxidation activities.Results:Picris cyanocarpa(P.cyanocarpa)and Anthemis deserti(A.deserti)had powerful antioxidant properties as radical scavenger,reducing agent and superoxide anion radical scavenger while Achillia fragrantissima(A.fragrantissima)and Artemissia monosperma(A.monosperma)were the most efficient as ion chelator(100%at 100,200 and 400μg/mL)A.fragrantissima and Rhanlarium appoposum(R.appoposum.)showed 100%inhibition on peroxidation of linoleic acid emulsion at 200 and 400μg/mL,while butylatedhydroxy toluene and ascorinc acid showed 100and 95%inhibition percentage at 400μg/mL,respectively.Those various antioxidant activities were compared to standard antioxidants such as butylated hydroxyl toluene and ascorbic acid.Conclusions:In most tests P.cyanocarpa and A.deserti had powerful antioxidant properties as radical scavenger,reducing agent and superoxide anion radical scavenger.
Objective: To study the antioxidant properties of crude extract of different Asteraceae plants. Methods: The antioxidant properties of six extracts were evaluated using different antioxidant tests, including free radical scavenging, reducing power, metal chelation, superoxide anion radical scavenging, total antioxidant capacity and inhibition of lipid peroxidation activities. Results: Picris cyanocarpa (P. cyanocarpa) and Anthemis deserti (A. deserti) had powerful antioxidant properties as radical scavenger, reducing agent and superoxide anion radical scavenger while Achillia fragrantissima (A. fragrantissima) and Artemissia monosperma A. monosperma showed the most efficient as ion chelator (100% at 100, 200 and 400 μg / mL) A. fragrantissima and Rhanlarium appoposum (R.appoposum.) Showed 100% inhibition on peroxidation of linoleic acid emulsion at 200 and 400 μg / mL, while butylatedhydroxy toluene and ascorinc acid showed 100 and 95% inhibition at 400 μg / mL, respectively.Those various antioxidant activities wer e compared to standard antioxidants such as butylated hydroxy toluene and ascorbic acid. Conclusions: In most tests P. cystica and A. deserti had powerful antioxidant properties as radical scavenger, reducing agent and superoxide anion radical scavenger.