Antimicrobial Activity of Extracts of some Plants Collected from the Kingdom of Saudi Arabia

Essam Abdel-Sattar, Fathalla Harraz, Sabah El-Gayed
2008 Journal of King Abdulaziz University-Medical Sciences  
The antimicrobial activity of twenty wild plants growing in the western regions of the Kingdom of Saudi Arabia was tested. The methanolic extracts from the aerial parts was determined using the agar diffusion method. Eight microorganisms were used in this study, namely, Escherichia coli, Proteus vulgaris, Pseudomonas aeruginosa, Staphylococcus aureus, Sarcina lutea, Bacillus subtilis, Mycobacterium phlei and Candida albicans. The results revealed that thirteen extracts exhibited a significant
more » ... ted a significant broad-spectrum antibacterial activity against both Gram-positive and Gram-negative bacteria. On the other hand, seven extracts showed only a narrow spectrum activity against Gram-positive bacteria. All the tested extracts with the exception of one plant showed a significant anti-mycobacterium effect, while they have variable antifungal effects.
doi:10.4197/med.15-1.3 fatcat:sv3la36elffd3k2nxi5vmlo3oa