Effectiveness of Origanum vulgare L. and Origanum majorana L. essential oils in inhibiting the growth of bacterial strains isolated from the patients with conjunctivitis

Brazilian Archives of Biology and Technology

Jana Luíza Toscano Mendes De Oliveira²  Margareth De Fátima Melo Diniz²  Edeltrudes De Oliveira Lima¹  Evandro Leite De Souza¹  Vinícius Nogueira Trajano¹  Bernadete Helena Cavalcante Santos¹ 

[1] ,Universidade Federal da Paraíba Centro de Ciências da Saúde Departamento de Ciências FarmacêuticasJoão Pessoa Paraíba ,Brasil

关键词: Origanum vulgare L.;    Origanum marjorana L.;    Essential oil;    Antibacterial activity;    Conjunctivitis;   

DOI  :  10.1590/S1516-89132009000100006

来源: SciELO

【 摘 要 】

This study aimed to evaluate the antibacterial activity of Origanum vulgare L. and O. majorana L. essential oils on Staphylococcus aureus, S. coagulase negative, Enterobacter spp., Proteus spp., Acinetobacter spp., Klebsiella spp. isolated from the patients with conjunctivitis. The results showed a prominent inhibitory effect of both the essential oils on all the bacterial strains, noted by the large bacterial growth inhibition zones (15-32mm). The Minimum Inhibitory Concentrations (MIC) values were between 5-20µL/mL and 2.5-10 µL/mL for O. vulgare and O. majorana essential oil, respectively. The MIC were able to cause significant (P<0.05) inhibitory effect on the cell viability of Klebsiella spp., Proteus spp. and S. aureus providing a total elimination of the bacterial inoculum in a maximum time of 24 h of exposure. These results showed the antibacterial effectiveness of O. vulgare and O. marjorana essential oils and supported the possibility of their use as the sources of alternative antimicrobial compounds.

【 授权许可】

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