3-D stochastic modeling approach in thermal inactivation: estimation of thermal survival kinetics of <i>Escherichia coli</i> O157:H7 in a hamburger after exposure to desiccation stress.

ABSTRACT: Desiccation tolerance of pathogenic bacteria is one strategy for survival in harsh environments, which has been studied extensively. However, the subsequent survival behavior of desiccation-stressed bacterial pathogens has not been clarified in detail. Herein, we demonstrated that the effect of desiccation stress on the thermotolerance of Escherichia coli O157:H7 in ground beef was limited, and its thermotolerance did not increase. E. coli O157:H7 was inoculated into a ground beef hamburger after exposure to desiccation stress. We combined a bacterial inactivation model with a heat transfer model to predict the survival kinetics of desiccation-stressed E. coli O157:H7 in a hamburger. The survival models were developed using the Weibull model for two-dimensional pouched

SUBMITTER: Yabe H 

PROVIDER: S-EPMC11218657 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature