Resumo

HERNANDEZ DIAZ, Lizet; RODRIGUEZ JORGE, Mayra; GARCIA, Dinah  e  PINO ALEA, Jorge. Actividad antidermatofítica in vitro de aceites esenciales. Rev Cubana Plant Med [online]. 2003, vol.8, n.2. ISSN 1028-4796.

The in vitro antidermatophytic activity of the Ocimum gratissimum L, Ocimum tenuiflorum L, Pimenta dioica L and Piper auritum H.B.K. species was evaluated. The study of this biological activity was conducted by the determination of the minimum inhibitory concentrations using the method of dilutions in Sabouraud dextrose broth medium. Samples of essential oil obtained at "Dr. Juan Tomás Roig" Experimental Station of Medicinal Plants were used and a microbial battery composed of Microsporum canis, Trichophyton mentagrophytes and Trichophyton rubrum dermatophytes, all of them from clinical isolations, was utilized. The kinetics of the fungicidal activity, as well as the qualitative and quantitative chemical characterization of the volatile components were also assessed. The results showed the presence of activity in the oils on the studied fungal species. It was stressed the susceptibility of M. Canis against Ocimum tenuiflorum L., which had a minimum inhibitory concentration of 0.15 mg/mL. The kinetic studies corroborated the results of the antimicrobial activity. The largest components responsible for this activity in the oils were: eugenol, present in Pimenta dioica L. and in Ocimum tenuiflorum L.; timol, present in Ocimum gratissimum L.; and safrol, present in Piper auritum H.B.K.

Palavras-chave : ARTHRODERMATACEAE; OILS,VOLATILE; EUGENOL; TIMOL; MICROBIAL SENSITIVITY TESTS.