Evaluation of the cytotoxic effect and antibacterial, antifungal, and antiviral activities of Hypericum triquetrifolium Turra essential oils from Tunisia

BMC Complementary and Alternative Medicine

Research Article

Pier Luigi Cioni¹  Guido Flamini¹  Thabet Yangui²  Zyed Rouis³  Nabil Abid³  Mahjoub Aouni³  Sadok Koudja⁴  Ameur Elaissi⁵ 

[1] Dipartimento di Chimica Bioorganica e Biofarmacia, Universita’ di Pisa, Via Bonanno 33, 56126, Pisa, Italy;Laboratoire des Bioprocédés, Pôle d’Excellence Régionale AUF, (PER-LBP) Centre de Biotechnologie de Sfax, BP: 1177, 3018, Sfax, Tunisia;Laboratoire des Maladies Transmissibles et Substances Biologiquement Actives LR99ES27, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia;Laboratoire d’Analyse, Traitement et Valorisation des Polluants de l’Environnement et des Produits, Faculté de Pharmacie Rue Avicenne, 5000, Monastir, Tunisia;Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia;

关键词: Hypericum triquetrifolium;    Coxsakievirus B3;    Essential oils;    Bacteria;    Fungi;   

DOI  :  10.1186/1472-6882-13-24

 received in 2012-04-04, accepted in 2013-01-23,  发布年份 2013

来源: Springer

【 摘 要 】

BackgroundA number of bio-active secondary metabolites have been identified and reported for several Hypericum species. Many studies have reported the potential use of the plant extracts against several pathogens. However, Hypericum triquetrifolium is one of the least studied species for its antimicrobial activity. The aim of the present study was to evaluate the cytotoxic effect of the essential oils of Hypericum triquetrifolium as well as their antimicrobial potential against coxsakievirus B3 and a range of bacterial and fungal strains.MethodsThe essential oils of Hypericum triquetrifolium harvested from five different Tunisian localities (Fondouk DJedid, Bou Arada, Bahra, Fernana and Dhrea Ben Jouder) were evaluated for their antimicrobial activities by micro-broth dilution methods against bacterial and fungal strains. In addition, the cytotoxic effect and the antiviral activity of these oils were carried out using Vero cell lines and coxsakievirus B3.ResultsThe results showed a good antibacterial activities against a wide range of bacterial strains, MIC values ranging between 0.39-12.50 mg/ml and MBC values between 1.56-25.0 mg/ml. In addition, the essential oils showed promising antifungal activity with MIC values ranging between 0.39 μg/mL and 12.50 μg/mL; MFC values ranged between 3.12 μg/mL and 25.00 μg/mL; a significant anticandidal activity was noted (MIC values comprised between 0.39 μg/mL and 12.50 μg/mL). Although their low cytotoxic effect (CC50 ranged between 0.58 mg/mL and 12.00 mg/mL), the essential oils did not show antiviral activity against coxsakievirus B3.ConclusionThe essential oils obtained from Hypericum triquetrifolium can be used as antimicrobial agents and could be safe at non cytotoxic doses. As shown for the tested essential oils, comparative analysis need to be undertaken to better characterize also the antimicrobial activities of Hypericum triquetrifolium extracts with different solvents as well as their purified fractions and their pure secondary metabolites.

【 授权许可】

CC BY   
© Rouis et al.; licensee BioMed Central Ltd. 2013