Composition and Antibacterial Activity of the Essential Oils fromZanthoxylum rhoifolium

Authors:
  • AWAndréia Denise Weber
    Andréia Denise Weber
  • SGSandro Rogério Giacomelli
    Sandro Rogério Giacomelli
  • IDIonara Irion Dalcol
    Ionara Irion Dalcol
  • EDEmilia Carolina Machado Dessoy
    Emilia Carolina Machado Dessoy
  • AMAdemir Farias Morel
    Ademir Farias Morel
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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 %), β-myrcene (30.2 %), (-)-linalool (15 %) and (-)-α-terpineol (8.45 %). β-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.