Antibacterial effects of some medicinal plant essential oils against Lactococcus garvieae, Yersinia ruckeri and Aeromonas hydrophila

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Abstract

In this study, the antibacterial effects of essential oil extracted from 4 medicinal plants, (Thymus deansis, Satureja bachtiarica, Cuminus cyminam and Myrtus communis) carvacrol, tymol, florfenicol and tetracycline against three pathogenic bacteria (Aeromonas hydrophila, Yersinia ruckeri and Lactococcus garvieae) were evaluated. Minimum inhibitory concentration (MIC) and minimum bactericidal concentrations (MBC) of the essential oils were evaluated after preparation of serial dilution. Inhibition zone were also determined on Muller Hinton agar medium. According to the results, the largest inhibition zone was observed from S. bachtiarica and C. cyminam essential oils against A. hydrophila, Y. ruckeri and L. garvieae. The obtained results showed different MICs and MBCs for different bacteria; however, in most cases the essential oils were more effective than tetracycline. Tymol, florfenicol and S. bachtiarica essential oil demonstrated the highest inhibitory and bactericidal e.....
Iranian Scientific Fisheries Journal
Volume 24, Issue 4 - Serial Number 93
January and February 2016
Pages 55-64

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