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Open AccessReview

Review on Polysaccharides Used in Coatings for Food Packaging Papers

1
Department of Environmental, Applied Engineering and Agriculture, Faculty of Engineering and Agronomy, Dunărea de Jos University of Galați, 817112 Brăila, Romania
2
Doctoral School of Fundamental and Engineering Sciences, Dunărea de Jos University of Galați, 817112 Brăila, Romania
*
Author to whom correspondence should be addressed.
Coatings 2020, 10(6), 566; https://doi.org/10.3390/coatings10060566
Received: 18 May 2020 / Revised: 11 June 2020 / Accepted: 12 June 2020 / Published: 15 June 2020
(This article belongs to the Special Issue Novel Advances in Food Contact Materials)
Paper and board show many advantages as packaging materials, but the current technologies employed to obtain adequate barrier properties for food packaging use synthetic polymers coating and lamination with plastic or aluminium foils—treatments which have a negative impact on packaging sustainability, poor recyclability and lack of biodegradability. Recently, biopolymers have attracted increased attention as paper coatings, which can provide new combinations in composite formulas to meet the requirements of food packaging. The number of studies on biopolymers for developing barrier properties of packaging materials is increasing, but only a few of them are addressed to food packaging paper. Polysaccharides are viewed as the main candidates to substitute oil-based polymers in food paper coating, due to their film forming ability, good affinity for paper substrate, appropriate barrier to gases and aroma, and positive effect on mechanical strength. Additionally, these biopolymers are biodegradable, non-toxic and act as a matrix for incorporation additives with specific functionalities for coated paper (i.e., active-antimicrobial properties). This paper presents an overview on the availability and application of polysaccharides from vegetal and marine biomass in coatings for foods packaging paper. The extraction methods, chemical modification and combination routes of these biopolymers in coatings for paper packaging are discussed. View Full-Text
Keywords: polysaccharides; food packaging paper; coating; hemicelluloses; chitosan; cellulose derivatives polysaccharides; food packaging paper; coating; hemicelluloses; chitosan; cellulose derivatives
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Nechita, P.; Roman (Iana-Roman), M. Review on Polysaccharides Used in Coatings for Food Packaging Papers. Coatings 2020, 10, 566.

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