Composition chimique et activités antibactérienne et antifongique des huiles essentielles extraites des feuilles d'Eucalyptus camaldulensis et de son hybride naturel (clone 583)

Abstract

Chemical composition and antimicrobial activity of essential oils from leaves of Eucalyptus camaldulensis and its natural hybrid (clone 583) and pure 1,8-cineole activity were studied. Results showed that hybrid contains more 1,8- cineole than parental species. Hybridization improved rate of this product to the detriment of the other components. The sensitivity of bacterias and fungi with respect to essential oils was studied at different concentrations. No activity was detected for the 1,8-cineole. For essential oils hybrid, the 1/100 V/V concentration was necessary to avoid germs activities. At 1/500 V/V concentration, Escherichia coli, Staphylococcus aureus and Aspergillus niger are more sensitive with respect to essential oils of E. camaldulensis. Inhibition of Bacillus subtilis, Trametes pini and Pénicillium parasiticus required a concentration of 1/250 V/V. © 2001, Taylor & Francis Group, LLC.