Antimicrobial activity of Brazilian copaiba oils obtained from different species of the Copaifera genus

被引:121
|
作者
dos Santos, Adriana Oliveira [2 ]
Ueda-Nakamura, Tania [1 ]
Dias Filho, Benedito Prado [1 ]
Veiga, Valdir F., Jr. [3 ]
Pinto, Angelo C. [4 ]
Nakamura, Celso Vataru [1 ]
机构
[1] Univ Estadual Maringa, Lab Microbiol Aplicada Prod Nat & Sinteticos, BR-87020900 Maringa, Parana, Brazil
[2] Univ Estadual Londrina, Programa Posgrad Microbiol, Londrina, PR, Brazil
[3] Univ Fed Amazonas, Dept Quim, Manaus, Amazonas, Brazil
[4] Univ Fed Rio de Janeiro, Inst Quim, Rio De Janeiro, Brazil
来源
MEMORIAS DO INSTITUTO OSWALDO CRUZ | 2008年 / 103卷 / 03期
关键词
copaiba oil; yeast; dermatophyte; bacteria; Copaifera; leguminoseae;
D O I
10.1590/S0074-02762008005000015
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
The antimicrobial activity of copaiba oils was tested against Gram-positive and Gram-negative bacteria, yeast, and dermatophytes. Oils obtained from Copaifera martii, Copaifera officinalis, and Copaifera reticulata (collected in the state of Acre) were active against Gram-positive species (Staphylococcus aureus, methicillin-resistant S. aureus, Staphylococcus epidermidis, Bacillus subtilis, and Enterococcus faecalis) with minimum inhibitory concentrations ranging from 31.3-62.5 mu g/ml. The oils showed bactericidal activity, decreasing the viability of these Gram-positive bacteria within 3 h. Moderate activity was observed against dermatophyte fungi (Trichophyton rubrum and Microsporum canis). The oils showed no activity against Gram-negative bacteria and yeast. Scannning electron microscopy of S. aureus treated with resin oil from C. martii revealed lysis of the bacteria, causing cellular agglomerates. Transmission electron microscopy revealed disruption and damage to the cell wall, resulting in the release of cytoplasmic compounds, alterations in morphology, and a decrease in cell volume, indicating that copaiba oil may affect the cell wall.
引用
收藏
页码:277 / 281
页数:5
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