Abstract:

The using of plants of Saudi Arabia for the cure of many ailments is ancient and still available among the tribal and local people and medicinal healers. In this study, alcoholic extract of seven plants from Tanhat protected area, Saudi Arabian, were studied for their antioxidant properties. The antioxidant properties were evaluated using different antioxidant tests, including inhibition of lipid peroxidation, reducing power, metal ion chelation, scavenging of free radical, superoxide anion radical, hydrogen peroxide and nitric oxide as well as total antioxidant capacity.