Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003; email:
Annu Rev Food Sci Technol. 2017 Feb 28;8:135-153. doi: 10.1146/annurev-food-030216-025915. Epub 2017 Jan 4.
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.
现代数学软件和用户友好的交互程序可以简化和加速动力学计算。它们还为存储数据收集和分析的新方法开辟了道路。这可以通过最近引入的简单指数模型来说明，该模型可与 Arrhenius 方程和端点和连续点方法互换，并可以从少量等温或非等温实验数据中估计化学降解动力学参数。还介绍了一种使用两种化学标记物确定保质期的方法和一种用于峰反应的全局现象模型，例如在脂质氧化中遇到的反应。最近还引入了免费下载的 Wolfram Demonstrations 和其他交互软件，可在几分钟内生成、可视化、检查和/或比较实际或假设的存储情况。它们包括通过将两个重建的降解曲线或单个非等温曲线通过屏幕上的降解参数滑块移动两个输入实验点来求解一对同时非线性代数或微分速率方程的程序。
