RESUMO
The essential oil from fruits of Retrophyllum rospigliosii (Pilger) C.N. Page grown in Colombia was analyzed by GC and GC/MS. Ninety-one compounds were identified, of which the most prominent were limonene (37.7%) and alpha-pinene (16.3%). The in vitro antibacterial activity of the essential oil was studied against seven bacterial strains using the disc diffusion method. The strongest activity of the oil was against the Gram-positive bacterium Bacillus cereus.
Assuntos
Antibacterianos/química , Antibacterianos/farmacologia , Frutas/química , Óleos Voláteis/química , Óleos Voláteis/farmacologia , Traqueófitas/química , Bactérias/efeitos dos fármacos , Colômbia , Cromatografia Gasosa-Espectrometria de Massas , Testes de Sensibilidade MicrobianaRESUMO
The chemical composition of the volatile compounds from the leaves of Galinsoga parviflora Cav. (Asteraceae) from Colombia was studied by GC and GC/MS. Eighty-eight volatile compounds were identified, of which the major ones were (Z)-3-hexen-1-ol (21.7%), beta-caryophyllene (12.4%), and 6-demethoxy-ageratochrome (14%). The leaf oil presented antimicrobial activities against the Gram-positive bacteria Staphylococcus aureus and Bacillus cereus.