Studies of the Essential Oil Composition, Antibacterial and Antifungal Activity Profiles ofFrankenia laevisL. from Tunisia

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Abstract
Essential oils from the aerial parts of Frankenia laevis were obtained by steam distillation and were analyzed by GC-FID and GC/MS. Forty-four compounds were identified, representing 91.5% of the oil constituents. Hexadecanoic acid was the major compound (19.8%), followed by methyl linoleate (16%), (E, E)-farnesyl acetate (9.5%), (E)-nerolidol (8.9%) and benzyl benzoate (6.8%). Minimum inhibitory concentrations, minimum bactericidal concentrations and inhibition zone diameters against gram-positive bacteria, gram-negative bacteria and phytopathogenic fungi were determined. Essential oil was particularly effective against Staphylococcus aureus, Micrococcus luteus and Salmonella typhimurium, nevertheless no antifungal activity was detected at the tested concentrations.

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