The Effect of Extraction method and Solvents on yield and Antioxidant Activity of Certain Sudanese Medicinal Plant Extracts

Abstract

This study came with the objective to compare the effect of extraction method and solvents on yield and antioxidant activity of certain Sudanese medicinal plant extracts, used in traditional medicine for treating various illnesses. The effect of maceration and Soxhlet successive extraction with n-hexane, chloroform and methanol were investigated on the antioxidant activity of five Sudanese medicinal plants. The antioxidant activities were assessed via DPPH (2, 2-Di (4-tert-octylphenyl)-1-picryl-hydrazyl) free radical scavenging activity and Propyl Gallate as standard antioxidants. Maceration was more effective than successive Soxhlet extraction with the same solvents.