Thermal Inactivation of <i>Salmonella spp.</i> in Chicken Broth, Beef, Pork, Turkey, and Chicken: Determination of D‐ and Z‐values

Abstract

ABSTRACT: The heat resistance of 35 Salmonella strains was determined at 55 to 65°C. No correlation between the heat resistance and the origin of the Salmonella spp. could be established. D‐values in chicken broth, using a linear regression, of an 8 Salmonella serotype cocktail were 4.87, 2.72, 1.30, and 0.41 min at 55, 58, 60 and 62°C, respectively. Using a linear model, the D‐values ranged from 4.86 min at 55°C to 0.38 min at 62°C. When the 8 Salmonella serotype cocktail was heated in meat, D‐values at the common test temperatures of 58 and 60°C calculated by both approaches were significantly higher (p &lt; 0.05) than those observed in chicken broth.