Antibacterial, antioxidant and cytotoxic activities of triterpenes and flavonoids from the aerial parts of Salvia barrelieri Etl.
Fiche publication
Date publication
septembre 2017
Journal
Natural product research
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MORJANI Hamid
Tous les auteurs :
Lehbili M, Alabdul Magid A, Kabouche A, Voutquenne-Nazabadioko L, Abedini A, Morjani H, Gangloff SC, Kabouche Z
Lien Pubmed
Résumé
From the aerial parts of Salvia barrelieri Etl. (Lamiaceae), 12 compounds including a new triterpene, 3β-acetoxy-olean-18-ene-2α-ol, were isolated. Their structures were established by the combination analyses of spectroscopy including 1D-, 2D-NMR and HRESIMS and in comparison with the reported data in the literature. The antibacterial activity of these compounds was evaluated by bioautography on Staphylococcus aureus followed by the determination of MIC values by serial dilution technique against five bacteria. Three compounds were active against Enterococcus faecalis, S. aureus, Staphylococcus epidermidis, Escherichia coli and Pseudomonas aeruginosa (MIC 15.1 to 125 μg/mL). Two compounds showed moderate DPPH radical scavenging activity (IC50 79.1 and 21.2 μg/mL). These compounds did not show significant tyrosinase inhibitory activities (IC50> 1.5 mg/mL). Their cytotoxic activity was evaluated against promyelocytic leukaemia (HL60), human erythromyeloblastoid leukaemia (K562) and fibrosarcoma (HT1080) cell lines and four compounds exhibited a moderate cytotoxic activity (IC50 28.75 to 85.0 μM).
Mots clés
Salvia barrelieri, antibacterial activity, cytotoxic activity, flavonoids, lamiaceae, radical scavenging activity, triterpenoids
Référence
Nat. Prod. Res.. 2017 Sep;:1-9