Global Research Journal of Agricultural and Biological Sciences Vol.3(4) pp.370 –372 October 2012.

Available online http://www.globalresearchjournals.org/?a=journal&id=grjabs

Copyright ©2012 Global Research Journals

 

 Case Study.

ANTIBACTERIAL AND ANTIFUNGAL EFFECT OF THE ETHANOL LEAF EXTRACT OF NEWBOULDIA LAEVIS

¹ODUNBAKU, O.A AND AMUSA, N.A.

DEPARTMENT OF PLANT SCIENCE AND APPLIED ZOOLOGY

OLABISI ONABANJO UNIVERSITY, AGO-IWOYE. OGUN STATE.

¹CORRESPONDING AUTHOR’S E-MAIL; esthershow2005@yahoo.com

Abstract

 The Ethanol leaf extract of Newbouldia Laevis was screened for antibacterial effect against three Gram negative bacteria (Pseudomonas aeruginosa, Klebsiella pneumonia and Proteus mirabilis) two gram positive (Staphylococcus albus and Bacillus subtilis) and  also for antifungal activity against five fungi (Candida stellatoidea, Aspergillus niger, Aspegillus terrens, Penicillium oxalicum and Candida albicans). Inhibitory activity of the plant extract was higher in the fungi than in the bacteria. Among the bacteria, the inhibitory effect of leaf extract was higher on the gram negative than the gram positive bacteria. Streptomycin had inhibitory activity on all the tested organisms and the activity was higher than that of Newbouldia Laevis on some of the organisms. 

Key words: Antibacterial, Antigungal, Ethanol extract, Newbouldia laevis, invitro.