Determination of Antimicrobial Activity of Thuja orientalis Against Some Pathogenic Microorganisms

Abstract

The present study was conducted to investigate the antimicrobial
activity of the hot water and the hot ethanolic extracts of Thuja orientalis
against some pathogenic microorganisms (Staphylococcus aureus,
Pseudomonas aeruginosa, Eschericha coli, Proteus mirrablis, Salmonilla
typhi, Klebsiella pneumoniae, Bacillus cereus, Bacillus subtilus,
Acinobacter, Staphylococcus epidermidis and Candida albicans). Results
showed that both the water and alcoholic extracts of this plant exert
marked inhibitory effect against all the bacterial isolates and yeast and at
different ratio, and it was shown that ethanolic extract was more effective
in microbial inhibition than the water extract. Maximum inhibition (16
mm) was recorded against Staphylococcus aureus and Candida albicans
with the hot water extract, while maximum inhibition was seen against
Bacillus cereus by the hot alcoholic extract.