Polysaccharide-based high barrier food packaging film: design and application

In the process of storage and processing, food will be affected by the external environment and reduce its quality, such as light, water, oxygen, microorganisms, etc. Barrier packaging is needed to shield the adverse effects of the external environment. Polysaccharide macromolecules are rich in active sites, which gives them designable properties, and therefore have been widely studied by researchers in the field of barrier packaging films. In view of the previous researchers, this paper reviews the recent progress of polysaccharide-based barrier composite films (cellulose, starch, chitosan, xylan, sodium alginate, agar, pullulan etc.). Firstly, summarizes and analyzes the types of food packaging barrier and the principle, and then this paper focuses on various types of polysaccharide-based barrier packaging materials, from the design, preparation, performance to the application, and analyzes the strengths and weaknesses of the polysaccharides and synergism with other substances to improve the barrier properties of composite films. The paper aims at exploring the application value of biomass polysaccharides as high-barrier film materials and providing theoretical references for further research on biomass polysaccharide-based high-barrier composite film.