Effect of different solvent extracted sample of Allium sativum (Linn) on bacteria and fungi

Published on Jun 29, 2011in African Journal of Biotechnology
· DOI :10.5897/AJB11.232
Jehan Bakht18
Estimated H-index: 18
Muhammad Tayyab7
Estimated H-index: 7
+ 2 AuthorsMohammad Shafi17
Estimated H-index: 17
-1 ) of each extract were subjected for preliminary antibacterial screening against seven pathogenic bacteria by Kirby- Bauer disk diffusion method. The result of in vitro antibacterial screening showed that 6 extracts from garlic had different ranges of antibacterial activities. When garlic extracts were studied for their antibacterial potential against Gram-positive bacteria and Gram-negative bacteria, the butanol extracted samples showed the highest inhibitory effect against B. cereus (76% ZI at 2 mg disc -1 concentration). Water extracted samples indicated a good range of inhibitory effect against Salmonella typhi (73% ZI at 2 mg disc -1 ) and butanol extracted sample showed highest activity against Erwinia carotovora (75% ZI). The data also showed that of petroleum ether, methanol and water did not show any inhibitory effect against the tested microbes.
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