Isolation of Salmonella from Natural Sources Representing High Potential for Biofilm Formations

Abstract

Salmonella is a common food-borne pathogen that causes the deadly salmonellosis in humans and animals. Salmonella has been known to develop biofilm which protects it against antimicrobial agents and sanitizing agents on varieties of surfaces. In this study, seven Salmonella isolates from chicken intestine and egg from the markets in Bangkok illustrated the potential in developing biofilms on glass and polystyrene or plastic materials while they preferred to attach to the glass surface rather than the plastic surface. The isolates from chicken intestine illustrated the higher potential in developing the biofilm than the isolates from egg on both materials with the P-value of 0.0078 on polystyrene surface and 0.0218 on glass surface. One of the isolates from egg represented the lowest ability in biofilm formation than others.