Chemical composition and antimicrobial activity of the essential oils from two species of Eucalyptus.
The leaf-essential oil from Eucalyptus robusta and E. saligna, the latter in two phenologic stages, were analysed by gas chromatography coupled to mass spectrometry (GC-MS). The major constituent in E. robusta oil was the monoterpene alpha-pinene (73.0% of the total amount). The oil composition of the E. saligna was dependent of the phenologic stage. In the vegetative phase, the major constituents were p-cymene (54.2%) and gamma-terpinene (43.8%), while during the blossoming alpha-pinene became the major constituent followed by p-cymene (22.5%). Additionally, the antimicrobial activity for all three oils was evaluated against Staphylococcus aureus, Escherichia coli and Candida albicans. The E. robusta oil presented the highest growth inhibition for all the microorganisms tested.
Sartorelli
Patrícia
P
Centro de Estudos Químicos, UNIFIEO, Centro Universitário FIEO, Av. Franz Voegeli, 300 Bloco Branco, 4o andar. CEP 06020-190, Osasco, SP, Brazil. psatorelli@unifieo.br
Marquioreto
Alexandre Donizete
AD
Amaral-Baroli
Adriana
A
Lima
Marcos Enoque L
ME
Moreno
Paulo Roberto H
PR
D000890:Anti-Infective Agents / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D002176:Candida albicans / Q000187:drug effects; D002849:Chromatography, Gas; D004926:Escherichia coli / Q000187:drug effects; D005052:Eucalyptus; D006801:Humans; D013058:Mass Spectrometry; D008826:Microbial Sensitivity Tests; D008517:Phytotherapy; D018515:Plant Leaves; D010938:Plant Oils / Q000008:administration & dosage / Q000737:chemistry / Q000494:pharmacology* / Q000627:therapeutic use; D013211:Staphylococcus aureus / Q000187:drug effects
D000890:Anti-Infective Agents; D010938:Plant Oils