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Study of Antibacterial Activity of Callistemon citrinus Leaves Extract on Pseudomonas aeruginosa | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 22, Issue 1, 2011, Pages 13-22 | ||
| Author | ||
| Faris A. Al-Hilli | ||
| Abstract | ||
| Leaves extracts from Callistemon citrinus were subjected for antibacterial activity against Pseudomonas aeruginosa. Alcoholic, hot and cold water extracts of C. citrinus leaves were tested against nine isolates of P. aeruginosa taken from various infections and including sensitive and multiresistant isolates to antipseudomonal antibiotics. The ethanolic and hot water extracts exhibited antibacterial activity only at high concentration (160 mg/ml) against four isolates of P. aeruginosa while the cold water extract exhibited antibacterial activity at low concentrations (10,20,40 and 80) mg/ml. The MIC of the cold water extract was between (10-40) mg/ml and the MBC was between (20-80) mg/ml for the four isolates of P. aeruginosa. By using simple chemical tests, we have found that the ethanolic, hot water and cold water extracts contained glycosides and phenolic compounds while the alkaloids were absent. | ||
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