FSTC 326 Lecture Notes - Lecture 26: Pascalization, Regulatory Agency, Pasteurization
4 Nov 2016
School
Department
Course
Professor
Document Summary
Equivalency in microbial destruction of differing processing technologies. Pathogen of concern may change with change in processing method. Fda and usda-fsis both allow use of non-thermal processing validated to produce equivalent or superior safety in food products. Process, treatment, or combination that"s applied to food to reduce the most resistant microorganisms of public health significance to a level that isn"t likely to present a public health risk under normal conditions of distribution and storage. Setting thermal and non-thermal processes as equivalent relies on bench- marking processing against desirable levels of safety. Application of very high pressure (100-800 mpa) for some time period to vacuum-packaged foods. Run as single process or cyclical pressurization + decompression. Membrane permeabilization and release of lps from membrane. Dmpa = time (min) at constant pressure producing a 1. 0 log10-cycle reduction in microorganism. Membrane breakdown and cellular content leakage or cell explosion. Used mainly for liquid foods, but can be used in some solid food applications.
