Assessment of activation energy of enthalpy relaxation in sucrose-water system: effects of DSC cycle type and sample thermal history

Abstract The purpose of this study is to critically analyze different methods calculation activation energy relaxation in sucrose-water system from differential scanning calorimetry data. We consider the use thermal cycles for calculations together with Moynihan and Kissinger equations. effect two glass transition temperature determination (half-step inflection point) on values. Along experimental DSC data, we data simulated using Tool–Narayanaswamy–Moynihan model validate cooling heating curves check reproducibility calculations. obtained results show that cycle equal rates provides most reliable set definition point rather than half step can be recommended Moreover, due technical reasons, scans provide Furthermore, a simple method based width region shows reasonable single scan experiments. energies water contents histories were studied. Since it impossible apply traditional equation evaluation freeze-dried samples, propose another properties recovery peak. Combining by methods, present dependence content. decreases process sucrose matrix.