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Open Access Research article

Antimicrobial activities of the methanol extract and compounds from Artocarpus communis (Moraceae)

Victor Kuete1*, Patrick Y Ango2, Ghislain W Fotso3, Gilbert DWF Kapche2*, Jean P Dzoyem1, Arlette G Wouking3, Bonaventure T Ngadjui3 and Berhanu M Abegaz4

Author Affiliations

1 Department of Biochemistry, Faculty of Science, University of Dschang, Cameroon

2 Department of Chemistry, Higher Teachers' Training College, University of Yaoundé I, Cameroon

3 Department of Organic Chemistry, Faculty of Science, University of Yaoundé I, P.O. Box 812, Yaoundé, Cameroon

4 Department of Chemistry, Faculty of Science, University of Botswana, Private Bag 00704, Gaborone, Botswana

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BMC Complementary and Alternative Medicine 2011, 11:42  doi:10.1186/1472-6882-11-42

Published: 25 May 2011

Abstract

Background

Artocarpus communis is used traditionally in Cameroon to treat several ailments, including infectious and associated diseases. This work was therefore designed to investigate the antimicrobial activities of the methanol extract (ACB) and compounds isolated from the bark of this plant, namely peruvianursenyl acetate C (1), α-amyrenol or viminalol (2), artonin E (4) and 2-[(3,5-dihydroxy)-(Z)-4-(3-methylbut-1-enyl)phenyl]benzofuran-6-ol (5).

Methods

The liquid microdilution assay was used in the determination of the minimal inhibitory concentration (MIC) and the minimal microbicidal concentration (MMC), against seven bacterial and one fungal species.

Results

The MIC results indicated that ACB as well as compounds 4 and 5 were able to prevent the growth of all tested microbial species. All other compounds showed selective activities. The lowest MIC value of 64 μg/ml for the crude extract was recorded on Staphylococcus aureus ATCC 25922 and Escherichia coli ATCC 8739. The corresponding value of 32 μg/ml was recorded with compounds 4 and 5 on Pseudomonas aeruginosa PA01 and compound 5 on E. coli ATCC 8739, their inhibition effect on P. aeruginosa PA01 being more than that of chloramphenicol used as reference antibiotic.

Conclusion

The overall results of this study provided supportive data for the use of A. communis as well as some of its constituents for the treatment of infections associated with the studied microorganisms.