Resumo

PORTO, Carla et al. (R)-(-)-carvone and (1R, 4R)-trans-(+)-dihydrocarvone from poiretia latifolia vogel. J. Braz. Chem. Soc. [online]. 2010, vol.21, n.5, pp. 782-786. ISSN 0103-5053.  http://dx.doi.org/10.1590/S0103-50532010000500003.

The essential oils of Poiretia latifolia Vogel, native and cultivated leaves (Samples A and B, respectively) and native flowers (sample C), were obtained by hydrodistillation and analyzed by GC, GC/MS and chiral phase gas chromatography (CPGC). Twenty-four compounds were identified, representing 99.25, 99.26 and 99.23% of the oils, respectively. The major constituents of the oils were the monoterpenes (S)-(-)-limonene (16.05, 27.60, 15.60%, respectively), (1R, 4R)-trans-(+)-dihydrocarvone (18.05, 0.66 and 77.80%, respectively) and (R)-(-)-carvone (61.05, 64.20 and 4.50%, respectively). The essential oils were evaluated against some strains of Gram (+) and Gram (-) bacteria, and yeast, but displayed only modest antimicrobial activity.

Palavras-chave : poiretia latifólia; essential oil; antimicrobial activity; (R)-(-)-carvone; (1R, 4R)-trans-(+)-dihydrocarvone.