Marine polysaccharide-based edible film as degradable alternative to plastic packaging: Preparations, applications...

The increasing demand for sustainable food packaging solutions has spurred significant interest in edible films. Marine polysaccharides, as a main source of bioplastics, present a promising alternative to traditional plastic packaging due to their biodegradable, renewable, and bioactive properties. This review examines the diverse range of marine polysaccharides sourced from marine organisms that have been utilized in the production of edible films, including tunicate cellulose, ulvan and laminarin. Key properties and methods adopted to indicate these qualities are discussed. Additionally, various preparation methods and applications of marine edible films are outlined. Recent progress has primarily focused on the development of intelligent and active films to enhance their properties. The integration of intelligent sensors, artificial intelligence, and 4D printing technique have significantly broadened the application of marine polysaccharide-based films. Despite the promising advancements, biodegradability and Life Circle Assessment are introduced to indicate possible improvements for both research and production. To reveal the potential market value, Techno-economic analysis and successful commercialization cases were mentioned. In conclusion, marine polysaccharide films are recognized as prospective materials for the future advancement of sustainable food packaging.