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Journal Articles Chemistry and Biodiversity Year : 2016

Chemical Diversity and Antimicrobial Activity of Salvia multicaulis Vahl Essential Oils

Abstract

The chemical compositions and antimicrobial activities of the essential oils (EOs) of aerial parts of Salvia multicaulis Vahl, collected during the same week from two different Lebanese regions, were investigated. The EOs were obtained by hydrodistillation using a Clevenger-type apparatus and characterized by GC and GC/MS analyses. The minimum inhibitory concentrations of these EOs were determined against one Gram-negative and two Gram-positive bacteria, one yeast, and five dermatophytes using the broth microdilution technique. One EO was notably active against Staphylococcus aureus, methicillin-resistant S. aureus and all of the Trichophyton species tested. Nerolidol was found to be the major compound in the active oil; nerolidol was also absent from the inactive oil. This study demonstrated that nerolidol shows antimicrobial activity and therefore significantly contributes to the antimicrobial potential of the oil. The chemical diversity of worldwide S. multicaulis EOs was analyzed, revealing that the EOs of the present study belong to two different chemotypes found in the literature. The nerolidol chemotype appears to be restricted to Lebanon and can be used as antimicrobial against external bacterial and fungal infections.
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Dates and versions

hal-01299154 , version 1 (07-04-2016)

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Layal Fahed, Didier Stien, Naïm Ouaini, Véronique Eparvier, Marc El Beyrouthy. Chemical Diversity and Antimicrobial Activity of Salvia multicaulis Vahl Essential Oils. Chemistry and Biodiversity, 2016, 13 (5), pp.591-595. ⟨10.1002/cbdv.201500332⟩. ⟨hal-01299154⟩
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