Evaluation of antibacterial activity of photoactivated cow urine against human pathogenic strains

Abstract

The bactericidal properties of cow urine have been known to humans from a long time. Cow urine is an effective antibacterial agent against a broad spectrum of Gram-negative and Gram-positive bacteria. In this work, we explored photoactivated cow urine as a potential antimicrobial agent. The antimicrobial activity of cow urine was tested by agar well method using Gram-positive bacteria Bacillus cereus (MTCC-1305), Staphylococcus aureus (MTCC-3160) and Gram-negative bacteria Salmonella typhimurium (MTCC1253), Aeromonas hydrophila (MTCC-1739), Enterobacter aerogenes (MTCC-2823), Micrococcus luteus (MTCC-1809). Photoactivated urine showed highest antimicrobial activity against Gram-positive Bacillus cereus and Gram-negative bacteria Aeromonas hydrophila. Bactericidal effect showed against various bacteria depended on the concentration of photoactivated urine and the type of bacteria.