2.3. Films preparation
Thermoplastic starch films were obtained by thermo-
compression using an hydraulic press, following the processing
conditions reported in a previous work (Castillo et al., 2013). Mix-
tures were conditioned at 25 C and 60% relative humidity (RH) and
filmswere prepared at 140 C and 150 kg cm2
during 6min. Before
characterization, films were conditioned at 25 C and 60 % RH. Film
thickness was measured at least in ten different locations.