The State of the Art and Innovations in Active and Edible Coatings and Films for Functional Food Applications

Edible coatings and films are gaining the attention of researchers, consumers, and the food industry as a sustainable alternative to conventional plastic packaging. This review provides an overview of recent advances in their development, with a particular focus on new natural sources of biomaterials (e.g., proteins and polysaccharides) and natural additives (antioxidants and antimicrobials). Special attention is given to high-technology preparation methods, including electrohydrodynamic atomization (EHDA), as well as controlled release systems for bioactive compounds designed to preserve foodstuffs and extended their shelf life. The application of edible coatings as carriers of nutrients (vitamins) and bioactives (probiotics and polyphenols) to improve the nutritional value and support the development of functional foods is also discussed. In addition, this review addresses safety considerations and regulatory aspects that are crucial for commercialization and consumer acceptance. Finally, key challenges are highlighted, including the improvement of mechanical and barrier properties, scalability of innovative technologies, consumer education, regulatory support, and the integration of circular economy principles, to encourage the adoption of these sustainable solutions.