Development of biocomposite edible film food packaging based on gelatin from chicken claw waste

Biocomposite edible film gelatin is a technique that enhances the characteristics of the film by combining gelatin, carboxy methyl cellulose, and glycerol. Therefore, this study aims to examine the characterization of gelatin from chicken claw waste and biocomposite edible film gelatin from the waste. The edible film gelatin was produced by varying the concentrations of carboxy methyl cellulose and glycerol. The characteristics of the gelatin from the waste and the biocomposite edible film tested were yield, viscosity, Fourier transform infrared spectroscopy, thickness, swelling, pH, water content, water solubility, water vapor permeability, oxygen permeability, mechanical properties, and color. The results showed that the addition of carboxy methyl cellulose and glycerol significantly increased the thickness (0.095–0.107 mm) and swelling (61.25–95.43%). Treatment also had a significant effect on the pH value (range 6.67–8.87). The addition of carboxy methyl cellulose and glycerol did not significantly affect water content, water solubility, water vapor permeability, oxygen permeability, tensile strength, and young's modulus. However, the elongation break showed a significant difference with the addition of treatment. The concentration of carboxy methyl cellulose and glycerol also affected the transparency and color of the edible film, with a higher concentration resulting in a darker appearance.