To determine AHC, a differential scanning calorimeter (DSC) is usually used. A DSC generated thermogram, in which the rate of heat transfer is plotted versus temperature for a small amount of sample, provides information on the energy released or absorbed in the form of latent heat during phase transition of that sample (Hamdami et al., 2004a, Le Reverend et al., 2009 and Sebnam et al., 2007).