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Effect of phenological stages on yield, chemical composition and bioactiviy of Artemisia mesatlantica essential oil of Morocco

Author(s): H.K.Bencheqroun, M.Ghanmi, B.Satrani, A.Aafi, M.Aberchane, A.Echchelh, A.Chaouch

Artemisia mesatlantica is an aromatic plant, spontaneous and widespread in Morocco. It is used by the local populations for its medicinal virtues. The purpose of this present work is the comparative study of the yield according to the date of harvest. Additionally, we sought to determine the chemical composition of the essential oil stemming from this species, as well as the determination of its antimicrobial activities towards eleven pathogens. Our samples result from a rural area in eastern Morocco, namely a region between Ifrane and Boulmane. Seventy eight constituents were identified by chromatographic analysis (GC and GC/SM) in essential oil of this plant among which four are preponderant: â–thujone, 1,8 cineole, camphene and camphor. The best yield in essential oil of the Artemisia mesatlantica is in June and it is in the order of 1 % (mg/100g). The essential oil of Artemisia mesatlantica showed a significant antimicrobial activity against four species of bacteria, three species of fungus and all four tested fungi that cause wood decay. To the best of our knowledge, this work is the first of its kind.

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