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Biokemistri
Nigerian Society for Experimental Biology
ISSN: 0795-8080
Vol. 16, No. 2, 2004, pp. 106-111
Bioline Code: bk04027
Full paper language: English
Document type: Research Article
Document available free of charge

Biokemistri, Vol. 16, No. 2, 2004, pp. 106-111

 en The Antimicrobial Activities Of Methanolic Extracts Of Eucalyptus Camaldulensis check for this species in other resources And Terminalia Catappa check for this species in other resources Against Some Pathogenic Microorganisms
Babayi, H.; Kolo, I.; Okogun, J.I. & Ijah, U.J.J.

Abstract

Methanolic extracts of leaves of Eucalyptus camaldulensis check for this species in other resources and Terminalia catappa check for this species in other resources were studied for in vitro microbial activities by agar dilution method. The phytochemical analysis of the crude extracts of the medicinal plants revealed the presence of saponin, saponin glycosides, steroid, cardiac glycoside, tannins, volatile oils, phenols and balsam (gum). The methanolic extracts of the two plants inhibited the growth of Bacillus subtilis check for this species in other resources and Staphylococcus aureus check for this species in other resources (ATCC 103207 and Clinical strain respectively) but had no inhibitory effects on Pseudomonas aeruginosa check for this species in other resources , Salmonella typhi check for this species in other resources and Escherichia coli check for this species in other resources . Candida albicans check for this species in other resources was inhibited by the crude extracts of E. camaldulensis only. Accelerated gradient chromatography (AGC) gave fractions of the extract of T. catappa that were more active on Candida albicans check for this species in other resources and Escherichia coli than the crude extract. The minimum inhibitory concentration (MIC) of the extracts ranged from 1.25μ g/ml to 5μ g/ml. The results obtained suggest that T. catappa and E. camaldulensis can be used in treating diseases caused by the test organisms.

Keywords
Antimicrobial; medicinal plants; pathogenic microorganisms; inhibitory activity

 
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