Antibacterial Activity of Garlic (Allium Sativum) on Salmonella, Shigella, and E. Coli

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Abstract Background This experiment was conducted to see if garlic would inhibit the growth of Salmonella, Shigella and E. coli. This helps to understand the effectiveness of home remedies such as natural herbs includes garlic for medicinal purpose. Methods This study focuses on significant antibacterial activity of garlic (Allium sativum) extract against gram negative bacteria like Salmonella, Shigella and E. coli. The plant parts are known to have antimicrobial activity on bacteria which are known to be pathogenic to animals in general and to human in particular. The plant extracts were inoculated on prepared media of microbial culture contains Salmonella, Shigella and E. coli species. Results The result obtained indicates garlic has strong effective on Salmonella by reducing number of colonies that survive due to exposure of the anti-microbial agent is approximately similar to that of Salmonella but E. coli species showed some percent of resistance in comparison to Salmonella and Shigella. Conclusions The result obtained from this study could serve as an evident that Ethiopian traditional medicinal plants have a great effectiveness on different pathogenic organism.

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