studied the influence of chitosan and
glycerol concentrations in cassava starch films produced by casting
and observed that the WVP decreased with an increase in the concentration
of chitosan and increased with an increase in the concentration
of glycerol. According to the authors, this behavior was due
to the hydrophobicity of chitosan. In another study, the addition of
chitosan had a positive effect on the mechanical properties of starch
films, while glycerol had a negative effect (