When these two types of plants were tested for antioxidant activity. The results of the determination of the antioxidant activity of different extracts using methods DPPH is present in table.
found that Artemisia campestris and Thymelaea hirsuta is the IC50 2.053 and 3.025 mg / ml, respectively. Against the standard substance is Ascorbic acid. The activity 50%ethanol extracts of A. campestris could be attributed to their antioxidant activity as well as flavonoid contents. Indeed, the 50% ethanol extract of A. campestris which showed higher inhibition activity than that of T. hirsuta, exhibited stronger antioxidant activity and presented higher flavonoid contents than T. hirsuta ethanol–water extract.