Antimicrobial wrapping paper coated with a ternary blend of carbohydrates (alginate, carboxymethyl cellulose, carrageenan) and grapefruit seed extract. (15th September 2018)

• Record Type: Journal Article
• Authors: Shankar, Shiv; Rhim, Jong-Whan
• Is Part Of: Carbohydrate polymers. Volume 196(2018)
• Page Start: 92
• Page End: 101
• Publication Date: 2018-09-15
• Subjects: Functional paper coating -- Blended biopolymers -- Water absorption -- Oil absorption -- Antibacterial activity; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2018.04.128
• Languages: English
• ISSNs: 0144-8617

Abstract

Highlights: A ternary blend of the alginate, carboxymethyl cellulose, and carrageenan with grapefruit seed extract (GSE) was used for coating of paper. Water and oil resistance properties of paper increased after coating. Water vapor barrier, surface hydrophobicity, and mechanical properties, increased significantly after coating. Blended biopolymer coating material exhibited strong antibacterial activity. The biopolymer-coated paper showed a high potential for disposable food packaging applications. Abstract: A functional biopolymer-coated paper was prepared by coating a ternary blend of the alginate, carboxymethyl cellulose, and carrageenan with grapefruit seed extract (GSE) for the substitute use of synthetic polymer-coated paper. The microstructure of the surface and cross-section of the coated paper analyzed by field emission scanning electron microscope (FE-SEM) indicated that the biopolymer was compatible with the base paper and filled the pores of the porous fiber to make a smooth-surfaced coating paper. The properties of the biopolymer-coated paper, such as water and oil resistance, water vapor barrier, surface hydrophobicity, and mechanical properties, increased significantly compared with not only the base paper but also commercially used PE-coated paper. The blended biopolymer coating material exhibited strong antibacterial activity against food-borne pathogenic bacteria, Listeria monocytogenes and Escherichia coli, which were destroyed completely within 3 and 9 h, respectively. The packaging test for a minced fish cake packed with the biopolymer-coated paper showed the complete destruction of surface inoculated bacteria in 6–9 days. The biopolymer-coated paper showed a high potential for disposable food packaging applications to increase the shelf-life of packaged food.