Abstract

The antibacterial effect of essential oils of thyme ( Thymus vulgaris ),bergamot( Citrus bergamia ) , garlic( Allium sativum ) , french lavender( Lavandula stoechas )clove ( Caryophyllus aromaticum ),eucalyptus( Eycalyptus globus ) against Pseudomonas savastanoi pv. savastanoi were investigated. When essential oils were applied by dropping on absorbent paper disks and mixing with bacterial suspension thyme, bergamot, garlic, french lavender, clove, eucalyptus essential oils have been found effective more than others. It is detected that as the dose of essential oils increased, the antibacterial effect increased. Bacterial population did not change after 24 h growth in different treatment of essential oils at different times, but relative decrease in bacterial population at 0, 1, 3, and 6 h growing were observed. Especially, thyme essential oil showed the highest antibacterial effect, in all of the applications in different doses. Thyme was the most effective essential oil. Bergamot, lavender and eucalyptus essential oils followed thethymeessential oil, respectively.

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