Development of Protein-based Biodegradable Films from Fish Processing Waste

Abstract

Biodegradable films prepared using muscle protein from fish waste and processing discard (FG), fish gel with potato starch (FGS), fish gel with butylated hydroxy toluene (FGB) and Fish Gel with ascorbic acid (FGA) were of thickness ranging from 0.08 to 0.09 mm. These films were analysed for their physical, mechanical, and barrier properties. FGA had significantly higher elasticity (126.21%), and tensile strength (1.19 MPa) with lower water vapour permeability (0.3940 ± 0.0051 g/cm2/day), oxygen permeability (174 ml/m2xday) and water solubility (12.18%). Therefore, FGA had better tensile strength, lower barrier properties and less water solubility compared to FG, FGS and FGB. Mechanical properties of this film were similar to the films prepared from other biological origins. The result indicated that the biodegradable film from fish waste and processing discard muscle protein with ascorbic acid as antioxidant was suitable for application in food packaging.