title: Composition and antibacterial activity of the essential oils from Zanthoxylum rhoifolium.
abstract: The essential oils from the aerial parts of leaves, fruits and flowers of Zanthoxylum rhoifolium of Southern Brazil (Rio Grande do Sul), were analysed by GC, GC/MS, and chiral phase gas chromatography (CPGC). Forty-eight compounds were identified from the essential oils. The major constituents of the essential oil of the leaves were germacrene D (34 %) and bicyclogermacrene (23 %) and of the fruits, menth-2-en-1-ol (46.2 %), beta-myrcene (30.2 %), (-)-linalool (15 %) and (-)-alpha-terpineol (8.45 %). beta-Myrcene (65 %) and menth-2-en-1-ol (5.4 %) dominate the essential oil of the flowers. The oils of the leaves and fruits were bioactive with antibacterial activity against Staphylococcus aureus (Gram positive), and Klebsiella pneumoniae and Salmonella setubal bacteria (Gram negative) microorganisms, while the essential oil of the flowers was inactive.
authors.affiliation: Departamento de Química, NPPN, Universidade Federal de Santa Maria, Santa Maria, Brazil.
authors.forename: Wellington
authors.initials: W
authors.lastname: de Abreu Gonzaga
authors.forename: Andréia Denise
authors.initials: AD
authors.lastname: Weber
authors.forename: Sandro Rogério
authors.initials: SR
authors.lastname: Giacomelli
authors.forename: Euclésio
authors.initials: E
authors.lastname: Simionatto
authors.forename: Ionara Irion
authors.initials: II
authors.lastname: Dalcol
authors.forename: Emilia Carolina Machado
authors.initials: EC
authors.lastname: Dessoy
authors.forename: Ademir Farias
authors.initials: AF
authors.lastname: Morel
mesh_terms: D000890:Anti-Infective Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D035264:Flowers; D005638:Fruit; D006090:Gram-Negative Bacteria / Q000187:drug effects*; D006801:Humans; D007711:Klebsiella pneumoniae / Q000187:drug effects; D008826:Microbial Sensitivity Tests; D008517:Phytotherapy; D018515:Plant Leaves; D010938:Plant Oils / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D012475:Salmonella / Q000187:drug effects; D013211:Staphylococcus aureus / Q000187:drug effects*; D032106:Zanthoxylum
chemical_list: D000890:Anti-Infective Agents; D010938:Plant Oils