Authors : A. Olonisakin , M.O. Oladimeji and L. Lajide
Abstract: Essential Oils from dry fruits of Xylopia aethiopica and Syzgium aromaticum were obtained by steam distillation, using a Clevenger-type system. The composition was determined by means of gas chromatography-mass spectrometry techniques using direct injection. The oils were also screened for antibacteria activity against E. coli, Serratia sp, Salmonella typhi, Klebsiella sp, citrobacter and Pseudomonas aeruginosa. The oil yields were 1.2 and 7.4% for Xylopia aethiopica and Syzgium aromaticum, respectively. The results showed that twenty three and three constituents representing 74 and 99.9% of the o ils were conclusively identified from X. aethiopica and S. aromaticum, respectively. ß-pinene 13.78%, ß-phelladrene, 12.36% gama-terpinene 7.66% and -pinene 5.56% as the major components of X. aethiopica and eugenol 93.7% for S. aromaticum. The two oils show demonstrated activity against tested organisms with S. aromaticum having higher activity than X. aethiopica at different concentrations.
A. Olonisakin , M.O. Oladimeji and L. Lajide , 2007. Composition and Antibacteria Activity of Steam Distilled Oils from Xylopia aethiopica and Syzgium aromaticum. Journal of Engineering and Applied Sciences, 2: 236-240.