antimicrobial activity and antagonistic effect of ?essential oils from plant species
of Biology, Faculty of? Arts and Science,
SutcuImam University, Kahramanmaras-46045, Turkey
March 14, 2006 ; Revised received: January 15, 2007 ; Accepted: March 25, 2007)
Abstract: Kahramanmaras, is a developing city, located in the southern part of Turkey. Thymus eigii (M. Zohary and P.H. Davis) Jalas, Pinus nigra
Arn. sub sp pallasiana and Cupressus sempervirens L.
are? the useful plants of? the Kahramanmaras
province and have been under study since 2004 for the traditional uses of
plants empiric drug, spice, herbal tea industry, herbal gum and fuel. The study
was designed to examine the?
antimicrobial activities of essential oils of these plants by the disc
diffusion and minimum inhibitory concentration (MIC) methods. In addition,
antimicrobial activity of Thymus eigii was researched
by effects when it was used together with antibiotics and even when it was
combined with other essential oils. When the results of this study were compared
with vancomycin (30 mcg) and erytromycin
(15 mcg) standards, it was found that Thymus eigii
essential oil was particularly found to possess stronger antimicrobial
activity, whereas other essential oils showed susceptible or moderate activity.
However, antimicrobial activity changed also by in vitro interactions between
antibiotics and Thymus eigii essential oil, also
between essential oils of these plants and that of Thymus eigii
causing synergic, additive, antagonist effect.
Key words: ? Antimicrobial
activity, Essential oil, Thymus eigii, Pinus nigra, Cupressus
file of full length paper is available with author
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