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Asian Pac J Trop Biomed. 2014 May;4(Suppl 1):S505-9. doi: 10.12980/APJTB.4.2014B1168.

Antibacterial activity of the essential oils of myrtle leaves against Erysipelothrix rhusiopathiae.

Author information

1
Medicinal Plants Program, Stockbridge School of Agriculture, College of Natural Sciences, University of Massachusetts, Amherst, MA, 01003, USA ; Shahrekord Branch, Islamic Azad University, Department of Medicinal Plants, P.O. Box 166, Shahrekord, Iran.
2
Shahrekord Branch, Islamic Azad University, Department of Food Hygiene, College of Veterinary Medicine, Shahrekord, Iran.
3
Shahrekord Branch, Islamic Azad University, Department of Medicinal Plants, P.O. Box 166, Shahrekord, Iran.

Abstract

OBJECTIVE:

To evaluate the antibacterial activity of the essential oil of Myrtus communis (M. communis) L. against Erysipelothrix rhusiopathiae (E. rhusiopathiae) in vitro.

METHODS:

Wild populations of M. communis collected from Khuzestan and Lorestan provinces, Southwest Iran, were examined for antibacterial activity and chemical variability in leaves. The in vitro antibacterial activity against E. rhusiopathiae was performed by agar disc diffusion and micro-dilution assays.

RESULTS:

The essential oils of M. communis have strong antibacterial against E. rhusiopathiae in both assays. The results showed that the major components of the oil were α-pinene (22.3%-55.2%), 1,8-cineole (8.7%-43.8%) and linalool (6.4%-14.5%). The inhibition zones and MIC values for bacteria which were sensitive to the essential oils of M. communis were in the range of 14.7-27.0 mm and 0.031-0.25 mg/mL, respectively.

CONCLUSIONS:

This study demonstrates that products with valuable antibacterial activity can be produced from leaves of M. communis against E. rhusiopathiae.

KEYWORDS:

1,8-cineole; Erysipelothrix rhusiopathiae; Essential oil; Myrtus communis L.; α-Pinene

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