JOURNAL 514


Records of Natural Products
VOLUME & ISSUE
Year: 2013 Issue: 1 January-March
PAGES
p.6 - 14
STATISTICS
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AUTHORS
    Aikaterini Koutsaviti, Ioannis Bazos, Marina Milenković, Milica Pavlović-Drobac and Olga Tzakou
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GRAPHICAL ABSTRACT


ABSTRACT


 Dried aerial parts of five taxa of Greek Sideritis were subjected to hydrodistillation and the oils obtained were analyzed by using GC and GC-MS. A total of 82 compounds were identified and the analysis showed important differences between the samples not only quantitatively but also qualitatively. The microbial growth inhibitory properties of the essential oils were determined using the broth microdilution method against eight laboratory strains of bacteria - Gram positive: Staphylococcus aureus, Staphylococcus epidermidisMicrococcus luteusЕnterococcus faecalisBacillus subtilis and Gram negative: Escherichia coliKlebsiella pneumoniaePseudomonas aeruginosa, a nd two strains of the yeast Candida albicans. The tested essential oils exhibited considerable activity against certain strains of the microorganisms tested, with S. lanata oil presenting MIC values to S. aureus and M. luteuscomparable to those of the reference antibiotics.

KEYWORDS
  • Antimicrobial activity
  • chemical composition
  • essential oils
  • Sideritis spp.