title: A New Look at Kinetics in Relation to Food Storage.
abstract: Modern mathematical software and user-friendly interactive programs can simplify and speed up kinetics calculations. They also open the way for new approaches to storage data gathering and analysis. This is demonstrated with a recently introduced simple exponential model that is interchangeable with the Arrhenius equation and endpoints and successive points methods and that estimates chemical degradation kinetics parameters from a small number of isothermal or nonisothermal experimental data. Also presented are a method to determine shelf life using two chemical markers and a global phenomenological model for peaked reactions, such as those encountered in lipid oxidation. Also recently introduced are freely downloadable Wolfram Demonstrations and other interactive software to generate, visualize, examine, and/or compare actual or hypothetical storage scenarios in minutes. They include programs that solve pairs of simultaneous nonlinear algebraic or differential rate equations by passing two reconstructed degradation curves, or a single nonisothermal curve, through two entered experimental points by moving the degradation parameters' sliders on the screen.
authors.affiliation: Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003; email: micha.peleg@foodsci.umass.edu.
authors.forename: Micha
authors.initials: M
authors.lastname: Peleg
authors.affiliation: Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003; email: micha.peleg@foodsci.umass.edu.
authors.forename: Mark D
authors.initials: MD
authors.lastname: Normand
authors.affiliation: Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003; email: micha.peleg@foodsci.umass.edu.
authors.forename: Maria G
authors.initials: MG
authors.lastname: Corradini
mesh_terms: D061353:Food Storage; D007700:Kinetics; D008055:Lipids / Q000737:chemistry; D008962:Models, Theoretical; D010084:Oxidation-Reduction; D012985:Software Design
chemical_list: D008055:Lipids
keywords: Arrhenius equation; Wolfram Demonstrations; chemical degradation; endpoints method; lipid oxidation; shelf life