TPS exhibited a steady weight loss from room temperature to about 250 °C. This is due to release of adsorbed water during its combustion and glycerol evaporation. Such phenomenon prevents the distinction between the first and second TPS degradation phase and causes higher weight loss in the first degradation phase.The TG curve of TPC presents a weight loss in two steps: the first weight loss at 140–350 °C, with a reduction of about 4%, and the second loss at 350–500 °C, with a 93% weight loss. A similar behavior was observed by Neto et al. (2005). Furthermore, as shown in Table 1, the addition of chitosan did not significantly change the thermal stability of blends as compared to thermoplastic starch alone.