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    Composition and antimicrobial activity of the oils of Ferula szowitsiana DC. from Turkey
    (TAYLOR & FRANCIS INC, 2008) Oezek, Guelmira; Oezek, Temel; Iscan, Goekalp; Baser, K. Huesnue Can; Duran, Ahmet; Hammoglu, Ergin
    The essential oils from the leaves and steins of Ferula szowitsiana DC. (Umbelliferae) were separately obtained by hydrodistillation and then analyzed by GC and GC/MS methods. The oil yields were 0.4% and 0.05%, respectively. One-hundred and sixty-two compounds representing 99.5% and 99 compounds representing 94.4% were identified in the leaf oil and stem oil, respectively, with beta-eudesmol (32.0% and 29.5%, resp.), alpha-eudesmol (18.2% and 16.6%, resp.) and alpha-pinene (8.6% and 6.4%, resp.) as the major constituents. Antimicrobial activity of the leaf oil was tested via in-vitro microdilution broth technique. Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris, Salmonella typhimurium, Staphylococcus epidermidis, Methicillin-resistant Staphylococcus aureus, and Candida albicans were used as the test microorganisms.
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    Composition of the essential oil of Hippomarathrum cristatum (DC.) boiss.
    (ALLURED PUBL CORP, 2007) Oezek, Guelmira; Oezek, Temel; Baser, K. Husnu Can; Hamzaoglu, Ergin; Duran, Ahmet
    Water distilled essential oil of Hippomarathrum cristatum (DC.) Boiss. (Umbelliferae) fruits used as a condiment in food products traditionally was analyzed by GC and GC/MS methods. Eighty compounds were characterized representing 91.6% of the oil. Hexadecanoic acid (11.6%), nonacosane (8.0%), germacrene D (6.1%) and myristicin (4.4%) were found to be the major constituents of the oil.