Biopolymer and Carnauba Wax Coating for Improved Paper Oxygen Barrier, Water Vapor Barrier, and Grease Resistance.

ABSTRACT: Food packaging is essential to avoid food waste, which is a major contributor to global emissions. The vast majority of food packaging materials are made from petroleum-derived plastic, contributing substantially to the plastic waste crisis. Cellulosic paper is a biobased and biodegradable alternative packaging material, but its use is limited by its extremely poor barrier to oxygen, water, water vapor, and grease, all of which contribute to early degradation of food products. Typical coatings for paper are unsustainable and inhibit its biodegradability. In this work, a water-based, fully bioderived polyelectrolyte complex coating consisting of chitosan, pectin, and carnauba wax is applied to kraft paper to improve its resistance to oxygen, water, and grease. After a thermal annealing step

SUBMITTER: Fisher SG 

PROVIDER: S-EPMC12492330 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature