MFS Research Organization

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Post-Harvest Predictive Microbiology Process
Risk Models
Microbial Food Safety Research Unit Eastern
Regional Research Center North Atlantic Area
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Applied Research Program
FSIS
FDA
Industry
Risk assessments, food and technology validations
Food validations and feedback about the PMP
Data Gaps
Research
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Research Scientists Program

• Rolando Flores
• Tom Oscar
• Mark Tamplin
• Laura Zaika
• Peg Coleman

Process risk models
Pathogen fate on poultry
Validation of PMP
Competitive inhibition
Inoculum level boundaries
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Additional Research

• Development of models for
• pathogen behavior in modified atmospheres
• pathogen behavior under fluctuating temperatures
• pathogen virulence

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Pathogen Modeling Program (PMP)

• PMP effort initiated by Drs. Robert Buchanan
  and Richard Whiting at the ERRC
• PMP represents a comprehensive set of
• broth-based models

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Anaerobic conditions
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Pathogen Modeling Program

• Current version - 5.1
• Delivered via Internet and CDROM
• 1,000 downloads/year
• www.arserrc.gov/mfs/

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Advancing the Pathogen Modeling Program

• 5.1 6.0 (summer 2001)
• Internet stand-alone version
• Models of cumulative lethality
• Integration with risk assessment software
• Expert system
• More efficient Web/CD distribution of data
• Enhancing two-way interactions with industry
  and FSIS technical staff

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Enhanced Pathogen Modeling Program

• Expanded Menu Structure
• 2 New Heat Inactivation Models
• 2 New Cooling Growth Models
• New Editing Functions
• Reference Database
• Improved Help System

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• Extended Menu Choices
• By Model Type
• By Bacterial Species

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• L. monocytogenes Heat Inactivation

• E. coli Heat Inactivation

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• C. perfringens Cooling-growth

• C. botulinum Cooling-growth

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• Excel Type Tables and Charts
• Copy/Paste to OLE Applications
• Save Scenario Files

• Online Documentation and Reference Database

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• Input Options
• F or C
• Mono- or Biphasic Linear Temperature profiles or
  
• Time vs. Temperature data input.
• Output
• Growth Curves and
• Temperature profiles.
• Tables and Graphs may be copied and pasted into
  other applications.

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Post-Harvest Predictive Microbiology Process
Risk Models
For more information and to receive a PMP
CDROM, send an email message to mtamplin_at_arserrc
.gov