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Title: Chitosan Films Incorporated with Exopolysaccharides from Deep Seawater Alteromonas sp.
Authors: Zarandona, Iratxe; Estupinan, Monica; Perez, Carla and Alonso-Saez, Laura; Guerrero, Pedro; de la Caba, Koro
Abstract: Two Alteromonas sp. strains isolated from deep seawater were grown to promote the production of exopolysaccharides (EPS, E611 and E805), which were incorporated into chitosan solutions to develop films. The combination of the major marine polysaccharides (chitosan and the isolated bacterial EPS) resulted in the formation of homogenous, transparent, colorless films, suggesting good compatibility between the two components of the film-forming formulation. With regards to optical properties, the films showed low values of gloss, in the range of 5-10 GU, indicating the formation of non-glossy and rough surfaces. In addition to the film surface, both showed hydrophobic character, with water contact angles higher than 100 o, regardless of EPS addition. Among the two EPS under analysis, chitosan films with E805 showed better mechanical performance, leading to resistant, flexible, easy to handle films.
Keywords: chitosan; exopolysaccharides; Alteromonas; marine bacteria; films; ANTIBACTERIAL
Issue Date: 2020
Publisher: MDPI
Type: Article
Language: 
DOI: 10.3390/md18090447
URI: http://dspace.azti.es/handle/24689/1086
E-ISSN: 1660-3397
Funder: Economic Development and Infrastructures Department of the Basque Government [KK-2019/00076]
Quality and Food Industry Department of the Basque Government [22-2018-00078]
Appears in Publication types:Artículos científicos



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