Etude De L’Activité Antimicrobienne Des Extraits D’une Plante Médicinale « Mentha Suaveolens» De La Région D’Ain-Témouchent

Abstract

The work presented in this memory enters within the framework of the valorization of a plant used in traditional medicine in Algeria. With this intention, the air parts of Mentha suaveolens (North-western Algerian) were sifted for their possible antimicrobic activities. Five extracts obtained starting from the extraction by maceration in different solvents, petrolium ether, ethanol, dichlorométhane, distilled water and hexane. There after, the antimicrobic activity of the extracts at summer tested by a biological test, of aromatogramme, followed by the determination of the inhibiting concentration minimal (CMI) and the bactericidal and fungicidal concentration minimal (CMB and CMF). Our results showed that all the extracts are endowed with an antimicrobic effect, in particular that the petrolium ether extracts, ethanolic and of dichlorométhane present a significant activity on the stocks tested, while the extracts aqueous and hexanic are the least active with respect to the stocks tested and of which diameters of inhibition varying between 9 and 12 mm and a total inhibition with CMI which vary between 0,015 and 0,12mg/ml.