The polymers with active extract were processed in a
Microcompounder (Haake MiniLab II Micro Compounder, Thermo
Scientific, Germany) with a co-rotating twin-screw extruder. The
mixtures were processed at a speed of 150 rpm at 150 °C for 6 min.
To obtain the extruded films, the Microcompounder premix material
was pelletized and then fed into a Polylab rheometer (Thermo
Scientific, Germany) at a mass temperature of 160 °C. The thickness
of the extruded films was approximately 100 μm.