title: Chemical composition and antimicrobial activity of the essential oils from three chemotypes of Origanum vulgare L. ssp. hirtum (Link) Ietswaart growing wild in Campania (Southern Italy).
abstract: Essential oils obtained from inflorescences of three Origanum vulgare L.ssp. hirtum (Link) Ietswaart samples, growing wild in different locations in Campania (Southern Italy), were analysed. Three chemotypes were found: the first, with a prevalence of carvacrol/thymol; the second, characterized by the prevalence of thymol/alpha-terpineol; the third, featuring a prevalence of linalyl acetate and linalool. This chemical study attempts to provide a contribution in shedding light on the relationship between chemical composition and biotypes and/or chemotypes in Origanum vulgare ssp. hirtum. The essential oils were also evaluated for their antibacterial activity against 10 selected microorganisms. The data obtained contribute to the future view to use the essential oils as natural preservatives for food products, due to their positive effect on their safety and shelf life.
authors.affiliation: Dipartimento di Scienze Farmaceutiche, Università degli Studi di Salerno, via Ponte don Melillo, 84084 Fisciano, Salerno, Italia. ldemartino@unisa.it
authors.forename: Laura
authors.initials: L
authors.lastname: De Martino
authors.forename: Vincenzo
authors.initials: V
authors.lastname: De Feo
authors.forename: Carmen
authors.initials: C
authors.lastname: Formisano
authors.forename: Enrico
authors.initials: E
authors.lastname: Mignola
authors.forename: Felice
authors.initials: F
authors.lastname: Senatore
mesh_terms: D000080462:Acyclic Monoterpenes; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects*; D002849:Chromatography, Gas; D000081005:Cyclohexane Monoterpenes; D053138:Cyclohexenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D000081007:Cymenes; D008401:Gas Chromatography-Mass Spectrometry; D007558:Italy; D008826:Microbial Sensitivity Tests; D039821:Monoterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D031341:Origanum / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D013943:Thymol / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000080462:Acyclic Monoterpenes; D000900:Anti-Bacterial Agents; D000081005:Cyclohexane Monoterpenes; D053138:Cyclohexenes; D000081007:Cymenes; D039821:Monoterpenes; D009822:Oils, Volatile; D010938:Plant Oils; C016775:alpha-terpineol; D013943:Thymol; C073316:carvacrol; C018584:linalool
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