Optimization of broth recovery for repair of heat‐injuredSalmonella entericaserovar Typhimurium andEscherichia coliO157:H7

The purpose of this research was to determine optimum conditions for broth recovery of heat‐injured Salmonella Typhimurium and Escherichia coli O157:H7. Exposure to 55°C for 15 and 25 min, respectively, induced cellular injury to those pathogens. Comparison was made with the commonly used overlay method using selective medium for recovering sublethally injured cells of S. Typhimurium. For E. coli O157:H7, phenol red agar base with 1% sorbitol...