Insights into recent research progress and innovations regarding the application of xanthan gum in the field of food packaging

Food packaging plays a critical role in safeguarding perishable commodities from abiotic environmental stressors and biological contamination vectors. Advanced packaging systems mitigate environmental stressors and contamination to preserve food quality. However, the overuse and improper disposal of non-biodegradable plastic packaging materials have led to environmental concerns and health risks. Developing suitable biopolymer-based food packaging films as replacements for traditional plastic films has become a significant goal in food science. Polysaccharides are frequently used as raw materials for the production of these biopolymer films. Among them, xanthan gum (XG) is an extracellular polysaccharide with remarkable film-forming properties. XG has diverse applications in various industries, including food, industrial, pharmaceutical, agricultural, and petroleum sectors. This work comprehensively summarizes recent advancements in the preparation and application of XG-based materials for food packaging, with a particular focus on the characterization of XG-containing composite films. It provides a thorough overview of recent progress, outlining practical applications of XG-based composite films and edible coatings in improving food preservation. This review aims to provide a valuable reference for the application of XG-based packaging films in the food industry and promote the development of a sustainable food packaging industry.