State of the Art in the Development and Properties of Protein-Based Films and Coatings and Their Applicability to Cellulose Based Products: An Extensive Review

Coatings

Maria-Beatrice Coltelli¹  Florian Wild²  Elodie Bugnicourt³  Patrizia Cinelli¹  Martina Lindner²  Markus Schmid²  Verena Weckel²  Kerstin Müller²  Pablo Rodriguez²  Andreas Staebler²  Laura Rodríguez-Turienzo³  Andrea Lazzeri¹ 

[1] Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, Pisa 56122, Italy;Fraunhofer-Institute for Process Engineering and Packaging IVV, Giggenhauser Strasse 35, Freising 85354, Germany;Innovació i Recerca Industrial i Sostenible (IRIS), Parc Mediterrani de la Tecnologia, Avda. Carl Friedrich Gauss No. 11, Castelldefels 08860, Spain;

关键词: biopolymer;    protein;    film;    coating;    packaging;    paper;    paperboard;    cellulose;    renewable;   

DOI  :  10.3390/coatings6010001

来源: mdpi

【 摘 要 】

There is increasing research towards the substitution of petrochemicals by sustainable components. Biopolymers such as proteins, polysaccharides, and lipids derive from a variety of crop sources and most promisingly from waste streams generated during their processing by the agro food industry. Among those, proteins of different types such as whey, casein, gelatin, wheat gluten, soy protein or zein present a potential beyond the food and feed industry for the application in packaging. The general protein hydrophilicity promotes a good compatibility to polar surfaces, such as paper, and a good barrier to apolar gases, such as oxygen and carbon dioxide. The present review deals with the development of protein-based coatings and films. It includes relevant discussion for application in paper or board products, as well as an outlook on its future industrial potential. Proteins with suitable functionalities as food packaging materials are described as well as the different technologies for processing the coatings and the current state of the art about the coating formulations for selectively modulating barrier, mechanical, surface and end of life properties. Some insights onto regulations about packaging use, end of life and perspectives of such natural coating for decreasing the environmental impact of packages are given.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.