Abstract
Background: There is growing concern in the use of natural antimicrobial compounds due to the emergence of antibiotic resistance. One such contender is turmeric (Curcuma longa), an herb known for its usage in medicine for centuries; nowadays, however, its prospects in pharmacology are being actively discussed. Since access and utilization of modern health care is scarce in Bangladesh, such natural cures are worth researching. Objective: To assess the in vitro antibacterial activity of turmeric’s crude paste and aqueous extract against Staphylococcus aureus and Escherichia coli. Methods: The study was carried out in the Department of Pharmacology with the collaboration of Department of Microbiology, Mymensingh Medical College, Bangladesh, over a period of one year from July 2010 to June 2011, and it consisted of three experiments: Effects of crude turmeric paste incorporated in nutrient agar media, Minimum Inhibitory Concentration of Aqueous Turmeric Extract and Amikacin by broth dilution method, and Subculture method to confirm bactericidal effect. Results: CTP demonstrated effective growth of S. aureus at 10% concentration and E. coli at 30% concentration. The MIC of ATE was found to be 800 μg/ml for S. aureus and 2000 μg/ml for E. coli. The MIC for amikacin was 10 μg/ml for both organisms. These effects have been further substantiated in subculture studies regarding their bactericidal properties. Conclusion: From the findings of the current study, it is evident that both turmeric and its crude paste had profound antibacterial effects against S. aureus and E. coli, though the effect of crude paste was observed to be stronger than that of the aqueous extract. Although not as strong as Amikacin, its organic nature and possibility of side effects make it worth pursuing. Hence, this work adds to the literature on the fact that turmeric has health benefits as highlighted by traditional medical practice and points to the need to find new natural sources of .............
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