2. Material and methods
2.1. Materials
Native cassava starch (amylose 20.8 0.6 wt%) was obtained from Indemil (Brazil), poly(lactic acid) (PLA) was
supplied by Cargill (Natureworks LLC, USA) under the
brand name Ingeo3251D, and chitosan (medium molecular
weight, 75-85% deacetylated) was purchased from Sigma
–
Aldrich (USA). Glycerol was supplied by Dinâmica (Brazil)
and glutaraldehyde by Nuclear (Brazil).