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Photoinduced Antibacterial Activity of the Essential Oils from Eugenia brasiliensis Lam and Piper mosenii C. DC. by Blue Led Light

2019; Multidisciplinary Digital Publishing Institute; Volume: 8; Issue: 4 Linguagem: Inglês

10.3390/antibiotics8040242

2079-6382

Rakel Olinda Macedo da Silva, José Walber Gonçalves Castro, Orlando de Menezes Dantas, Ana Carolina Justino de Araújo, Maria Karollyna do Nascimento Silva Leandro, Raíra Justino Oliveira Costa, Luciely Leite Pinto, Lívia Maria Garcia Leandro, Luiz Everson da Silva, Wanderlei do Amaral, Lucas D. Parabocz, Áurea Portes Ferriani, Bruna Pinotti Garcia, Beatriz Helena Lameiro de Noronha Sales Maia, Janaína Esmeraldo Rocha, Camila Fonseca Bezerra, Thiago Sampaio de Freitas, Maria do Socorro Costa, Fábia F. Campina, Edinardo Fágner Ferreira Matias, Marcello Iriti, Henrique Douglas Melo Coutinho,

Olfactory and Sensory Function Studies

The objective of this work was to evaluate the phytochemical composition and the antibacterial and antibiotic-modulating activities of the essential oils of Eugenia brasiliensis Lam (OEEb) and Piper mosenii C. DC (OEPm) singly or in association with blue LED (Light-emitting diode) light. The antibacterial and antibiotic-modulatory activities of the essential oils on the activity of aminoglycosides were evaluated to determine the minimum inhibitory concentration (MIC, μg/mL) in the presence or absence of exposure to blue LED light. The chemical analysis showed α-pinene and bicyclogermacrene as major constituents of OEPm, whereas α-muurolol was the main compound of OEEb. Both OEEb and OEPm showed MIC ≥ 512 μg/mL against the strains under study. However, the association of these oils with the blue LED light enhanced the action of the aminoglycosides amikacin and gentamicin. In conclusion, the association of aminoglycosides with the blue LED light and essential oils was effective against resistant bacteria.