Data of Fig. 3 indicate that there are two periods of significant weight loss separated by about 260 °C. The low-temperature intensive trough, at about 270 °C, can be assigned to degradation of relatively unstable macromolecules such as proteins, whereas the high-temperature trough at535 °C could result from combustion of a residual carbonaceous product. Skodras et al. [37] and Senneca et al. [38] reported similar two-trough behavior during oxidative thermolysis of straw and waste wood. A relatively small trough at 430 °C located between two large ones, could be assigned to thermal degradation of lignin-like compounds.