Journal of
Pharmacognosy and Phytotherapy

  • Abbreviation: J. Pharmacognosy Phytother.
  • Language: English
  • ISSN: 2141-2502
  • DOI: 10.5897/JPP
  • Start Year: 2009
  • Published Articles: 234

Full Length Research Paper

In vitro evidence of anti-infective activity of crude aqueous extract obtained by boiling ripe stem-bark of Bridelia ferruginea Benth.

H. O. Dada-Adegbola*, O. A. Oluwatoba, O. E. Adebiyi and A. N. Odikagbue
Department of Medical Microbiology and Parasitology, College of Medicine, University College Hospital, University of Ibadan, Oyo State, Nigeria.
Email: [email protected], [email protected]

  •  Accepted: 28 May 2010
  •  Published: 30 June 2010


The prevalence of multiple antibiotics resistance has prompted efforts to explore for more efficacious antimicrobial agents. The extract obtained by boiling the bark ofBridelia ferruginea Benth. is used traditionally for treating oral thrush called ‘Efu’. For this reason the in-vitro effectiveness and range of activities of crude extract obtained by boiling, ripe-stem-bark of Bridelia ferruginea have been carried out. The extract was tested against various microorganisms collected from clinical specimens. Bacterial isolates of Pseudomonas aeruginosaEscherichia coliProteus mirabilis,Klebsiella pneumoniae and Staphylococcus aureus and Candida albicans, and other Candida species were tested for susceptibility using 0.5 McFarland turbidity standards of pure isolates on Mueller Hinton agar and Sabouraud dextrose agar. Ditches of 6 mm diameter were made on the media and 0.1 ml (9 drops) of the extract was added to each. For bacterial isolates, 3 or 4 standard antibiotic discs were added for comparison. The zone of inhibition around the extract ranged between 10 - 24 mm in diameter for bacterial and 14 - 25 mm for Candida (fungus). These results led to validate the activity both for fungal and bacterial agents of the crude extract obtained by boiling of the ripe stem bark of B. ferruginea as used traditionally.


Key words: Bridelia ferruginea, boiling, fresh, stem bark, Candida, bacteria.