title: Compositions and antimicrobial activities of the essential oils of two Hypericum species from Turkey.
abstract: The chemical compositions of essential oils obtained from Hypericum hyssopifolium var. microcalycinum and Hypericum lysimachioides var. lysimachioides were analysed by using GC and GC-MS. Caryophyllene oxide was found to be the major component. The essential oils of both Hypericum species showed antimicrobial activity against nine microorganism at a concentration of 60 to 80 microg/ml.
authors.affiliation: University of Dicle, Faculty of Science and Art, Biology Department, 21280, Diyarbakir, Turkey. ztoker@dicle.edu.tr
authors.forename: Zuhal
authors.initials: Z
authors.lastname: Toker
authors.forename: Göksel
authors.initials: G
authors.lastname: Kizil
authors.forename: Hasan Cetin
authors.initials: HC
authors.lastname: Ozen
authors.forename: Murat
authors.initials: M
authors.lastname: Kizil
authors.forename: Selçuk
authors.initials: S
authors.lastname: Ertekin
mesh_terms: D000890:Anti-Infective Agents / Q000494:pharmacology*; D001407:Bacillus / Q000187:drug effects; D002176:Candida albicans / Q000187:drug effects; D004926:Escherichia coli / Q000187:drug effects; D020902:Hypericum / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000494:pharmacology*; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology; D010946:Plants, Medicinal / Q000737:chemistry; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects; D013297:Streptococcus pyogenes / Q000187:drug effects; D014421:Turkey
chemical_list: D000890:Anti-Infective Agents; D009822:Oils, Volatile; D010938:Plant Oils