Fabrication of chitosan composite films reinforced with fish scale gelatin-hydroxyapatite and syringaldehyde for beef preservation.
Fish scale waste was valorized to develop a biodegradable active film with enhanced preservation performance. Gelatin and hydroxyapatite were extracted and combined with chitosan, while syringaldehyde was incorporated as a natural crosslinker and antibacterial agent to construct a dual-network structure. The combinatio...