Antibacterial activity of essential oils of Aloysia polystachya and Lippia turbinata

PÉREZ ZAMORA, CRISTINA; TORRES, CAROLA; AGUADO, MARÍA INÉS; BELA, ALBERTO J.; NUÑEZ, MARÍA BEATRIZ; BREGNI, CARLOS

BOLETíN LATINOAMERICANO Y DEL CARIBE DE PLANTAS MEDICINALES Y AROMáTICAS

SOC FITOQUIMICA LATINOAMERICANA

Lugar: Santiago de Chile; Año: 2016 vol. 15 p. 199 - 205

0717-7917

Aloysia polystachya and Lippia turbinata are medicinal and aromatic plants. Nevertheless, there are few reports in literatureconcerning the biological properties of species that grow in northeastern Argentina. The antibacterial activity and the chemical compositionof both essential oils were evaluated in this work. The extraction was performed by steam distillation and their volatile compounds weredetermined by gas chromatography/mass spectrometry. The antibacterial activity was evaluated by disc diffusion and broth microdilutionassay. The main compounds were carvone (78.9%) and limonene (14.2%) in A. polystachya and carvone (80.77%), limonene (8.73%), β-caryophyllene (2.13%) and 1,8-cineole (1.70%) in L. turbinata. Both essential oils were bactericide against Escherichia coli ATCC 35218and clinical isolates of Enterobacter cloacae and Klebsiella pneumoniae. Essential oil of A. polystachya was also bactericide againstStaphylococcus aureus ATCC 29212, S. aureus ATCC 25923 and clinical strain of S. aureus methicillin susceptible.