Recent advances in plant protein-based sustainable packaging films: resource, applications, challenges and future directions

This review discussed the plant protein in sustainable food packing film/coating from perspective of innovative protein sources, adequate additives, sustainability, and innovative fabrication technology. The incorporation of biopolymers (plasticizers, polysaccharides and lipids) on the properties and its application was investigated. These biopolymers realized the complementarity between protein and biopolymers within films. Further, this review explores the link between protein-based packaging materials and innovative technologies like electrospinning, solution casting, and dry extrusion. The study investigates how these biopolymers complement proteins to enhance the material’s barrier and mechanical properties, thereby improving food preservation and shelf life. Finally, the review evaluates the sustainability of these materials and their application in food preservation, providing a foundation for future exploration of innovative plant proteins in this field.