Determination of chemical composition and antibacterial properties of essential oil of Mentha longifolia ssp longifolia against phytopathogenic bacteria

In the present study, the chemical composition of the essential oil (EO) of Mentha longifolia L. Hudson ssp. longifolia (ML) and the antibacterial activity of the EO against phtopathogenic bacteria were determined. The EO of ML that grown in Eastern Anatolia was isolated by the hydrodistillation method and analyzed by GC-MS. According to GC analysis of the chemical composition of the EO of ML, it consisted of 12 identified components. Major components of the oil were cis-Piperitone epoxide (26.52%-GC), Piperitenone oxide (26.40%) and Pulegone (15.66%). The antibacterial activity of the EO was also tested against 20 phtopathogenic bacteria. In general, the oil had antibacterial activity at a wide spectrum on the growth of phtopathogenic bacteria. In conclusion, the results revealed that the EO of ML have significant antibacterial activity, and the findings of the present study are valuable for further investigations focusing on controlling plant pathogenic bacteria that cause crop loss.