Anti-bacterial Activity of Ellagic Acid against Pathogenic Bacteria

Ellagic acid is a bioactive phytochemical which has been associated with various medicinal properties, including wound healing, anticancer, antitumor, antimicrobial, antioxidant, anti-inflammatory, antimutagenic, and antiproliferative activities. This paper assesses the antibacterial potential of this compound against pathogenic bacteria, namely Staphylococcus aureus, Bacillus anthracis, Escherichia coli, Pseudomonas sp., and Proteus sp., using the agar well diffusion method. The antibacterial activity was determined over a range of concentrations up to the highest soluble level. The results showed a high degree of inhibition of bacterial growth at all tested concentrations, with Bacillus anthracis showing the highest susceptibility, having a zone of inhibition ranging from 15 to 28 mm. Overall, ellagic acid effectively suppressed the growth of all tested bacterial strains, thus making it a potential natural antimicrobial agent. These findings suggest that ellagic acid is a compound which, if further investigated and developed, could yield a promising novel antibacterial therapy.