Antibacterial activity of pomegranate fruit peels and arils

Tianchai Nuamsetti, Petlada Dechayuenyong, Sukon Tantipaibulvut
2012 ScienceAsia  
The in vitro antibacterial activities of different extracts of pomegranate fruit peels and arils (with seeds) were investigated by agar-well diffusion and broth dilution methods against four food-related bacteria (Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Salmonella typhimurium). The solvents used as extractants in this study were hot water, 95% ethanol, and acetone. Their total phenolic contents were also evaluated. All pomegranate extracts contained high levels of
more » ... gh levels of phenolics and exhibited antibacterial activity against all bacteria tested. The hot-water extract of the peels was the most potent with the minimal inhibitory concentration of 207 mg/ml against E. coli and less than 103.6 mg/ml against the other bacteria. Gram-positive bacteria were generally more sensitive to the extracts than Gram-negative ones.
doi:10.2306/scienceasia1513-1874.2012.38.319 fatcat:h4sb3dz5izggjoihaociibkcu4