Antimicrobial activity of the essential oil and extracts of Cordia curassavica (Boraginaceae)
2007
Hernandez, T. | Canales, M. | Teran, B. | Avila, O. | Durán, Alfredo (Durán Nuñez del Prado) | Garcia, A.M. | Hernandez, H. | Angeles-Lopez, O. | Fernandez-Araiza, M. | Avila, G.
In traditional Mexican medicine Cordia curassavica (Jacq) Roemer & Schultes is used to treat gastrointestinal, respiratory and dermatological disorders in Zapotitlán de las Salinas, Puebla (México). The aim of this work was to investigate antimicrobial activity of the essential oil, obtained by using Clevenger distillation apparatus, and hexane, chloroform and methanol extracts from aerial parts of Cordia curassavica. Antimicrobial activity was evaluated against 13 bacteria and five fungal strains. The oil and extracts exhibited antimicrobial activity against Gram-positive and Gram-negative bacteria and five fungal strains. Sarcina lutea and Vibrio cholerae were the strains more sensitive to the essential oil effect (MIC = 62 μg/mL) and Vibrio cholerae for the hexane extract (MIC = 125 μg/mL). Rhyzoctonia solani was the strain more sensitive to the essential oil effect (IC50 = 180 μg/mL) and Trichophyton mentagrophytes for the hexane extract (IC50 = 230 μg/mL). The essential oil was examined by GC and GC-MS. A total 11 constituents representing 96.28% of the essential oil were identified: 4-methyl,4-ethenyl-3-(1-methyl ethenyl)-1-(1-methyl methanol)cyclohexane (37.34%), β-eudesmol (19.21%), spathulenol (11.25%) and cadina 4(5), 10(14) diene (7.93%) were found to be the major components. The present study tends to confirm the use in the folk medicine of Cordia curassavica in gastrointestinal, respiratory and dermatological diseases.
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