Hydrocolloid-based coatings applied on biobased/biodegradable food flexible packaging, A review. Part 1 - Biopolymer to coat and available technologies
2025
Debeaufort, Frédéric | Kurek, Mia | Fabra, Maria-Jose | Ghasemi, Yasaman | Ščetar, Mario | Galić, Kata | Benbettaïeb, Nasreddine | Département Génie biologique (IUT de Dijon/Auxerre - Université Bourgogne Europe) ; Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon) ; Université Bourgogne Europe (UBE)-Université Bourgogne Europe (UBE) | Physico-chimie des Aliments et du Vin (PCAV) ; Procédés Alimentaires et Microbiologiques [Dijon] (PAM) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université Bourgogne Europe (UBE)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université Bourgogne Europe (UBE) | Faculty of Food Technology & Biotechnology [Zagreb] ; University of Zagreb | Instituto de Agroquímica y Tecnología de Alimentos - Institute of Agrochemistry and Food Technology [Valencia] (IATA-CSIC) | Procédés Alimentaires et Microbiologiques [Dijon] (PAM) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université Bourgogne Europe (UBE) | ANR-24-P013-0008,EVOLVEPACK,dEsign, processing and characterization of innoVative biOdegradable and compostabLe actiVE PACKaging structures to improve food safety of mediterranean foods(2024)
International audience
Show more [+] Less [-]English. The shift towards sustainable food packaging has intensified research into hydrocolloid-based coatings applied to biobased and biodegradable flexible films. Indeed, most of the biobased and/or biodegradable film available for the food market exhibits too low properties, but that could be compensated by coating applications.This review explores the potential of hydrocolloids as coating materials to improve the functional properties of sustainable flexible packaging such as polylactides, polyhydroxyalkanoates, thermoplastic starch, polycaprolactone. Hydrocolloid-based coatings, including proteins, polysaccharides, and their composites, are particularly promising due to their ability to improve barrier, surface and mechanical performance while maintaining biodegradability and food safety.The choice of technique for coating application depends on the desired coating thickness, adhesion strength, and functional enhancements. Various coating technologies are discussed, ranging from solvent-free (dry) processes, such as extrusion-lamination and hot press techniques, to wet-based (solvent) methods, including solution casting, spray coating, electrospinning, etc. Surface treatments, such as plasma activation, are often required before coating application to enhance adhesion, wettability, and mechanical resistance. This review provides an in-depth analysis of available biodegradable polymer films suitable for coating and food applications and the coating technologies, setting the foundation for the development of next-generation eco-friendly packaging films.
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