Research Progress on Polysaccharide-Based Aerogel Food Packaging

In recent years, aerogels have received more and more attention from researchers due to their properties such as low density, high porosity, high specific surface area and low thermal conductivity. Polysaccharide-based aerogel is a solid porous nanomaterial with three-dimensional network structure prepared by using polysaccharide as the precursor material and transforming the liquid phase in the gel with gas phase through a drying method. In addition to the characteristics of traditional aerogel materials, polysaccharide-based aerogels also have the advantages of non-toxicity, easy availability of raw materials, biocompatibility and biodegradability. This article summarizes the preparation methods of polysaccharide-based aerogels, and reviews the properties and applications of different types of polysaccharide-based aerogels prepared with different precursor materials, so as to provide a reference for the research and application of polysaccharide-based aerogel materials in food packaging.