Essential oils against Candida spp: in vitro antifungal activity of Origanum vulgare | Zendy

Brum Cleff Marlete | Zendy; Madrid Isabel | Zendy; Raquel Meinerz Ana | Zendy; Carlos Arauacute jo Meireles Maacute rio | Zendy; Roberto Braga de Mello Joatilde o | Zendy; Regina Rodrigues Maria | Zendy; Jaime Hernaacute Jesuacute s | Zendy

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Essential oils against Candida spp: in vitro antifungal activity of Origanum vulgare

Author(s) -

Brum Cleff Marlete,

Madrid Isabel,

Raquel Meinerz Ana,

Carlos Arauacute jo Meireles Maacute rio,

Roberto Braga de Mello Joatilde o,

Regina Rodrigues Maria,

Jaime Hernaacute Jesuacute s

Publication year - 2013

Publication title -

african journal of microbiology research

Language(s) - English

Resource type - Journals

ISSN - 1996-0808

DOI - 10.5897/ajmr12.1149

Subject(s) - carvacrol , thymol , essential oil , origanum , broth microdilution , candida albicans , minimum inhibitory concentration , antifungal , food science , chemistry , traditional medicine , microbiology and biotechnology , biology , antimicrobial , medicine

Experiments were conducted to evaluate the in vitro antifungal activity and determine chemical composition of Origanum vulgare essential oils. Nine Candida albicans (five clinical animal isolates and four ATCC strains), and three non-albicans species were studied; broth microdilution technique (CLSI) was used. Eight samples of commercial O. vulgare were submitted to hydrodistillation (Clevenger), and essential oils obtained were analyzed by gas chromatograph. Values of minimum inhibitory concentration (MIC) ranged from 1.0 to 0.065%, the average of MIC50 was 0.62 µL/mL while the average of MIC90 was 5.52 µL/mL and essential oils EO1 and EO8 were the ones with the best results. Results of thymol/carvacrol ratio were, for essential oils (EO) (EO1, 10.20/12.67; EO2, 7.88/0.50; EO3, 6.18/0.71; EO4, 0.58/21.58; EO5, 20.62/1.34; EO6, 21.95/4.71; EO7, 16.68/0.77; EO8, 8.42/9.44), demonstrated that differences between concentrations of thymol and carvacrol influenced MIC. These results indicate that the O. vulgare essential oils evaluated in this study presented growth inhibition activity over Candida spp. Key words: Origanum vulgare, Candida spp., essential oil, thymol, carvacrol.

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