Antibacterial activities of a new combination of essential oils against marine bacteria

Seyed Mohammad Mousavi, George Wilson, David Raftos, Seyed Saeed Mirzargar, Reza Omidbaigi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The antibacterial activities of essential oils and herbal extracts have been demonstrated against a range of bacterial species. In this study, the antibacterial effects of a new combination of essential oils from the herbs Thymus vulgaris, Salvia officinalis, Eucalyptus globulus and Mentha piperita were assayed against common bacterial isolates (Staphylococcus aureus, Escherichia coli and Pseudomonas aeroginosa) and fifteen novel marine bacteria isolates. The sensitivity of different isolates to antibacterial activity of the essential oils was determined using well diffusion assays. Minimum inhibitory concentrations (MIC) and minimum bactericidal concentrations (MBC) were quantified by micro dilution assays. The data demonstrate that the combination of essential oils had potent antibacterial effects and marine bacteria were more sensitive to growth inhibition (P < 0.05). MIC rates were 0.77-6.18 mg/ml, and MBC rates were 1.67-12.30 mg/ml. This indicates that the combined essential oils (CEO) can be a new source of antibacterial agents for use in marine aquaculture.

Original languageEnglish
Pages (from-to)205-214
Number of pages10
JournalAquaculture International
Volume19
Issue number1
DOIs
Publication statusPublished - Feb 2011

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