Abstract

PINO ALEA, Jorge A et al. Composición y propiedades antibacterianas del aceite esencial de Lippia alba (Mill.) n. e. Brown. Rev Cubana Farm [online]. 1996, vol.30, n.1. ISSN 0034-7515.

With the aid of capillary gas chromatography, mass spectrometry, and infrared spectroscopy, the volatile components of Lippia alba (Mill.) N.E. Br. essential oil, were studied, achieving the identification of 43 compounds, 20 of them reported for the first time. A high contents of carvone (carvona) was found, and this suggests the presence of a new chemotype. The antibacterial activity of the essential oil on a bacteria integrated by 9 bacterial species, was valuated by determining the inhibitory minimal concentrations, and with the use of the method of double dilution series in a liquid medium. The oil presented antibacterial activity, generally being higher on gram-positive germs, with values of the inhibitory minimal concentrations between 0,3 and 0,63 mg/L.

Keywords : OILS, VOLATILE; PLANTS, MEDICINAL; HOMEOPATHIC DRUG..