COMPOSITION OF SOME EUCALYPTUS LEAF OILS AND THEIR ANTIMICROBIAL ACTIVITIES | ||
| Zagazig Journal of Pharmaceutical Sciences | ||
| Article 6, Volume 6, Issue 2, December 1997, Pages 30-34 PDF (4.53 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/zjps.1997.184940 | ||
| Author | ||
| Azza El-Shafae* | ||
| Department of Pharmacognosy, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt. | ||
| Abstract | ||
| Analysis of the leaf essential oils of Eucalyptus robusta, E. resinifera and E. gomphocephala by GC and GC-MS resulted in the identification of 20, 14 and 22 components, comprising 88.4 , 89.5 and 89.5 % of the oils, respectively. The composition of the three oils varies both qualitatively and quantitatively. The oils are characterized by high concentration of sesquiterpene alcohols (α-, β-and ɣ-eudesmol and viridiflorol), oxygenated monoterpenes and phenolic ethers. Cineole ranges from 4.6 to 16.8%. trans- and cisMethylisoeugenol were found only in the oil of E. gomphocephala , these compounds have not been reported in Eucalyptus before. The oil of E. resinifera exhibited a significant antibacterial and antifungal effects, while that of E. gomphocephala showed a moderate antibacterial and strong antifungal activities. The oil of E. robusta showed a weak antibacterial effects and no antifungal activity against the tested microorganisms. | ||
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