Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Current Trends in Microbiology   Volumes    Volume 4 
Antibacterial efficacy of the extracts of cinchona bark
R. N. Nwaoguikpe, E. U. N. Nwoke, W. Braide
Pages: 97 - 102
Number of pages: 6
Current Trends in Microbiology
Volume 4 

Copyright © 2008 Research Trends. All rights reserved

Studies were conducted on the antibacterial efficacy of water and ethanolic extracts of cinchona bark on the activities of some selected bacterial species which include: Escherichia coli (E. coli), Pseudomonas aeruginosa, Streptococcus faecalis, Staphylococcus aureus and Bacillus subtilis. These bioassays were carried out using pour plate, disc and agar ditch techniques. Phytochemical studies of the extracts revealed that saponins, flavonoids, tannins, anthocyanins, phlobatannins were present, whereas betacyanins were absent. The observed zones of inhibition produced by the water and ethanol extracts showed that the water extract was more efficacious than the ethanol extract. The ethanol extract on the other hand, became more active on application of heat at 121 oC. This increase in activity could be due to the effect of concentration of the biologically active constituents of the bark extract. The antibacterial activities of the plant extracts suggest that they could serve as broad   spectrum antimicrobial agents.
Buy this Article


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms