Foods are thermodynamically metastable systems, as their properties change over the time depending on chemical
composition, enzymatic activity and storage conditions. Some studies support the idea of the reliability of calorimetric monitoring, mainly differential scanning calorimetry (DSC), to evaluate the shelf life of foods. As stated by Aguilera, Cuadros referring there is considerable interest in studying thermal transition in food polymers, particularly to test the hypothesis that there is a drastic decrease in mechanical and viscoelastic properties and increased molecular mobility in the food matrix at temperatures above Tg. A comparison between the results of traditional techniques and the calorimetric monitoring supported the reliability of the latter, which offers some peculiar advantages, like better temperature control, continuous follow-up, easier mathematical description, and overall energy balance of the degradation process
Foods are thermodynamically metastable systems, as their properties change over the time depending on chemicalcomposition, enzymatic activity and storage conditions. Some studies support the idea of the reliability of calorimetric monitoring, mainly differential scanning calorimetry (DSC), to evaluate the shelf life of foods. As stated by Aguilera, Cuadros referring there is considerable interest in studying thermal transition in food polymers, particularly to test the hypothesis that there is a drastic decrease in mechanical and viscoelastic properties and increased molecular mobility in the food matrix at temperatures above Tg. A comparison between the results of traditional techniques and the calorimetric monitoring supported the reliability of the latter, which offers some peculiar advantages, like better temperature control, continuous follow-up, easier mathematical description, and overall energy balance of the degradation process
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