Application of Pectin-based Composite Packaging in the Preservation of Fruits and Vegetables

Pectin is a natural polymer material that widely exists in plant cell walls. It is gradually used in the preservation of fruits and vegetables due to its advantages of biocompatibility, easy modification and modification, and degradability. Pectin-based composite packaging has gradually become the main packaging method of fruits and vegetables because of its better packaging performance and better preservation effect, breaking the limitation of single pectin packaging in the preservation of fruits and vegetables. In this paper, the structure and film-forming properties of pectin are introduced. The main components of pectin-based composite packaging are expounded from four aspects: Plasticizer, natural polymer, bioactive substances and nanomaterials. The application of the two methods of thin film and coating in the preservation of fruits and vegetables is reviewed and prospects are put forward, in order to provide technical reference for the preservation and storage of food and the development of new packaging materials in the future.