Study of Antioxidant Activity of Essential Oils Extracted from Moroccan Medicinal and Aromatic Plants

Morocco contains a wide wealth of aromatic and medicinal plants; they constitute natural components, its valorization request a perfect knowledge of the properties to put in value. The present work has been the objective of the valorization of seven plants by studying their chemical compositions and their powers antioxidants by the method of 2.2-diphenyl-1-picrylhydrazyle (DPPH). This study classify the efficiency of oils studied in accordance with the values of IC50 obtained, the oregano and the eucalyptus have been identified the most effective with IC50 values are respectively 2.47±1.06 and 4.005±0.38 mg/mL, on the other hand the spearmint has shown no effectiveness antiradical whose IC50 was not achieved even by increasing its concentration up to 4000 mg/mL.