Typical DSC thermograms (Fig. 3) show that all CH film (with or without essential oils) produces one broad endothermic peak at approximately 140◦C and one exothermic peak at 290◦C. As we commented in the TGA results, the endothermal effect can berelated to the evaporation of residual solvent used in the preparation of the films. With the 10% w/w increase of either CEO orCWO, no difference was found in this endothermic peak