Fabrication and characterization of edible films from <i>acha</i> (<i>Digitalia exilis</i>) and <i>iburu</i> (<i>Digitalia iburua</i>) starches

Some properties of biodegradable edible films developed from starches acha (Digitalia exilis) and iburu iburua), with glycerol as plasticizer, were evaluated compared. Scanning electron microscope revealed that starch film (ASF) had rougher surface larger size spores. Both showed similar crystallinity pattern made up A-type cereal backbone process induced VH-crystals. FTIR spectroscopy the traces some non-starch components in matrices. near-equal thickness (≈0.02 mm). However, (ISF) exhibited higher density, swelling power, water solubility mechanical resistant while ASF gave vapor permeability. maintained their integrity during testing period. ISF significantly (p < .05) transparency (97.08%) a* (−0.06) b* (1.81) values. Films promising characteristics could place them good materials for different packaging requirements.