title: Chemical constituents and antimicrobial activity of the essential oil of Lantana xenica.
abstract: The aim of this work was to evaluate the chemical composition of Lantana xenica essential oil and its antimicrobial activity. The oil from the aerial parts of Lantana xenica Mold. (Verbenacea) was obtained by steam distillation and analyzed by gas chromatography/mass spectrometry. The major constituent of the oil was (E)-caryophyllene (35.2 %), with minor amounts of gamma-cadinene (13.3 %), alpha-pinene (9.3 %), ocimene (9.2 %) and germacrene D (6.6 %). The antimicrobial assays showed that the essential oil of L. xenica inhibited the growth of Bacillus cereus and Proteus mirabilis and both bacteria were inhibited by (E)-caryophyllene, the major component of the oil. Enterococcus faecalis, Staphylococcus epidermidis and S. aureus showed a lower inhibition. The bacteria Micrococcus luteus, Klebsiella sp., Escherichia coli and the yeast Candida albicans were insensitive to both the oil and (E)-caryophyllene.
authors.affiliation: Cátedra de Botánica II, Herbario Regional del INDELLAR, Ing. Rec. Nat. Ren. Para Zonas Aridas, Universidad Nacional de La Rioja, Sede Universitaria Chamical, Argentina. hjuliani@rci.rutgers.edu
authors.forename: Hector R
authors.initials: HR
authors.lastname: Juliani
authors.forename: Fernando
authors.initials: F
authors.lastname: Biurrun
authors.forename: Adolfina R
authors.initials: AR
authors.lastname: Koroch
authors.forename: M M
authors.initials: MM
authors.lastname: Oliva
authors.forename: Mirta S
authors.initials: MS
authors.lastname: Demo
authors.forename: Victorio S
authors.initials: VS
authors.lastname: Trippi
authors.forename: Julio A
authors.initials: JA
authors.lastname: Zygadlo
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D006090:Gram-Negative Bacteria / Q000187:drug effects; D006094:Gram-Positive Bacteria / Q000187:drug effects; D032410:Lantana / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology*; D010946:Plants, Medicinal / Q000737:chemistry
chemical_list: D000900:Anti-Bacterial Agents; D009822:Oils, Volatile