Development of a Predictive Modeling System for Validation of the Cumulative Mirobial Inactivation of the Salmonellae in Pepperoni Utilizing a Non-Pathogenic Surrogate Microorganism (Enterococcus faecalis)
Date of Graduation
Doctor of Philosophy in Poultry Science (PhD)
Second Committee Member
H. L. Goodwin
Third Committee Member
Fourth Committee Member
Biological sicences; Food safety; Foodbourne pathogens; Microbial inactivation; Pepperoni; Salmonellae
Salmonellosis is the most frequently occurring bacterial foodborne illness in the United States and the human case rate has not improved for the past two decades. The federal agency responsible for oversight of meat and poultry processors has announced the intent to extend existing pathogen reduction performance standards for Salmonella spp. to cover all classes of products including fermented sausages that are currently produced under HACCP plans that are validated for control of Escherichia coli O157:H7. The proposed regulatory modifications will require processors to revalidate HACCP plan controls to achieve either a 6.5 or a 7.0 log10 inactivation of the salmonellae. Validated and accepted predictive microbial inactivation models that may be used to estimate the inactivation effects achieved for different product formulations under different processing conditions hold the potential to substantially reduce the impact that the proposed regulatory changes might have on the industry. This review examines the history of food preservation; the history of fermented sausages; the pepperoni production process; the food safety hazards most often associated with fermented sausage products; recent outbreaks of illness associated with fermented meat products; and the process controls that may be employed to prevent foodborne illness from consumption of fermented sausage products. The papers intended for publication will be beneficial to processors of pepperoni, providing a modeled estimate of the log10 reductions achieved under a variety of processing conditions.
Stillwell, Scott Donald, "Development of a Predictive Modeling System for Validation of the Cumulative Mirobial Inactivation of the Salmonellae in Pepperoni Utilizing a Non-Pathogenic Surrogate Microorganism (Enterococcus faecalis)" (2013). Theses and Dissertations. 800.