DSC measurements were performed using a Mettler Toledo DSC1 system, coupled with a Huber TC 100 intracooler. The instrument was calibrated with indium (Tm = 156.6 °C, ΔHm = 28.45 J/g) and zinc (Tm = 419.7 °C, ΔHm = 107.0 J/g) standards. Test samples were taken consistently from the central part of the gauge length of the dumbbell-shaped specimens, with each sample weighing approximately 5 mg. Samples were measured in 40 μl aluminium pans under a constant nitrogen purge (60 ml/min). The measurement procedure for all materials included heating, cooling, and reheating steps, with a 5-minute isothermal segment separating the initial heating and cooling. The temperature range for PLA-based materials was 0 to 200 °C, while for PCLbased materials it was -80 to 120 °C, with a heating/cooling rate of 10 ºC/min. The experimental data were processed using the STARe software. For data presentation, the DSC profiles were exported to OriginPro 2021 as ASCII files. The degree of polymer crystallinity was calculated using the formula given in publication , assuming the melting enthalpy values for 100 % crystalline polymers: 93.6 J/g for PLA and 139.5 J/g for PCL .