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Type: Artigo de periódico
Title: Chemical composition and antimicrobial activity of the essential oils of the Amazon Guatteriopsis species
Author: Costa, EV
Teixeira, SD
Marques, FA
Duarte, MCT
Delarmelina, C
Pinheiro, MLB
Trigo, JR
Abstract: The essential oils of Guatteriopsis blepharophylla, Guatteriopsis friesiana and Guatteriopsis hispida were obtained by hydrodistillation and analysed by GC and GC/MS. The main compound found in the leaf oil of G. blepharophylla was caryophyllene oxide (1) (69.25%). The leaf oil of G. friesiana contained predominantly beta-eudesmol (2) (51.60%), gamma-eudesmol (3) (23.70%), and alpha-eudesmol (4) (14.56%). The major constituents identified in the leaf of G. hispida were beta-pinene (38.18%), alpha-pinene (30.77%) and (E)-caryophyllene (20.59%). The antimicrobial activity of the essential oils was evaluated against 11 species of microorganisms. The oil of G. friesiana exhibited significant antimicrobial activity for all microorganisms tested, whereas that of G. hispida and G. blepharophyla had potent activity against Rhodococcus equi with MIC of 50 mu g mL(-1). The major constituents of each oil were also tested separately, and showed lower activity compared to the oils. Moreover, mixtures of the main constituents, in the same proportions found in G. friesiana and G. hispida oils, did not show the same activity as the original oils. (C) 2008 Elsevier Ltd. All rights reserved.
Subject: Guatteriopsis blepharophylla
Guatteriopsis friesiana
Guatteriopsis hispida
antimicrobial activity
essential oil
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Phytochemistry. Pergamon-elsevier Science Ltd, v. 69, n. 9, n. 1895, n. 1899, 2008.
Rights: fechado
Identifier DOI: 10.1016/j.phytochem.2008.03.005
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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