Construction and Properties of Polyvinyl Alcohol/Chitosan Electrospun Film Loaded with Catechins

In order to develop a new bio-based food packaging material and improve the bioavailability of natural phenolic compounds, an electrospinning film loaded with Catechin was prepared by electrospinning using catechin (CT), polyvinyl alcohol (PVA) and chitosan (CS) as substrates. The microstructure and diameter distribution of the electrospun films were analyzed by scanning electron microscopy. The interaction between CT and film forming substrate was studied by Fourier infrared spectroscopy, X-ray diffraction and thermal analysis. The effects of CT addition on the physical and chemical properties of the electrospun film were investigated by taking the mechanical properties, gas permeability and antioxidant activity of the film as parameters. Finally, the preservation effect of electrospun film was analyzed by sensory evaluation, water loss rate and titrable acid content. The results showed that the intermolecular hydrogen bond was formed between CT and CS, and the hydrophobic property was improved. When the con