Multipurpose packaging system based on intelligent carboxymethyl cellulose film and activated cellulose acetate electrospun nanofibers for seafoods.

Abstract

The objective of this research is to develop a natural macromolecules-based smart double-layer film using carboxymethyl cellulose (CMC) film containing pomegranate peel anthocyanins (PPA) and cellulose acetate nanofibers (CANFs) with Artemisia sieberi Besser essential oil-loaded nanostructured lipid carriers (ABNLCs). Based on the performance as a color indicator, and other studied properties, the CMC/PPA 8 % film was selected as the optimized film. The double-layer film was constructed by electrospinning the CANFs containing ABNLCs on the optimized CMC film. The average diameter of the CANFs was 332.87 ± 65.80 nm. Furthermore, the XRD patterns of CA/ABNLCs NFs showed many diffraction peaks that the sharp peaks at 2θ of 25° and 28°, indicating its crystalline structure. In addition, the Young's modulus and elongation at break point values of the CMC/PPA 8 % double-layered film were reached to 151.47 MPa and 11.39 %, respectively. The intelligent layer demonstrated acceptable performance in detecting the freshness of shrimp and fish fillets. The double-layered film showed good antibacterial activity with inhibition zones of 10 and 12 mm against E. coli and S. aureus pathogens, respectively.