Tapioca is a significant crop in South America, and it is an economical source of starch (FAO, 2004). Tapioca starch-based edible films exhibit appropriate physical characteristics, since these film are odourless, tasteless, colorless and impermeable to oxygen. However, films show brittleness with inadequate mechanical properties. The physical properties of sorbate-containing tapioca starch–glycerol edible films as affected by gelatinization and drying process were studied by Flores et al., (2007a). They found that the gelatinization technique and drying method used to obtain edible films affected network characteristics determining changes in physical properties. Moreover, the release of potassium sorbate from tapioca starch-based edible films with glycerol as plasticizer was studied and modelled by Flores et al. (2007b) who inferred that the proposed model satisfactorily fits the experimental data. Therefore, concluding that casting technique which produces films with high amorphous degree contributes greatly to the matrix relaxation for sorbate release.