Characteristics of Crosslinked Gelatin Film with Dialdehyde Cellulose Influenced by Plasticizer Type

The mechanical strength and structural stability of gelatin film were enhanced by crosslinking with dialdehyde cellulose (DC), having an aldehyde content of 65%. However, the elasticity of the film was improved by plasticizers. The recent work aims to examine the effect of plasticizer type on the characteristics of the gelatin film crosslinked with DC (GDC). The results demonstrated that the weight loss of the films increased after 24 hours of immersion in distilled water, resulting in diminished structural stability compared to the GDC film without adding a plasticizer. Insignificant differences in mechanical properties were observed among the GDC-plasticizer films. The GDC film with glycerol had the most vivid yellow hue, followed by the ones with PEG and sorbitol, respectively. Following a better appearance, the GDC film supplemented with sorbitol could be a potential candidate for packaging application.