Journal
APPLIED SURFACE SCIENCE
Volume 265, Issue -, Pages 697-703Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2012.11.086
Keywords
PET; Chitosan; Titrations; XPS; Antimicrobial properties; Potential active packaging
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Funding
- Eureka office [E 4952I]
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In this paper advanced surface treatment of PET plastic film is presented for introduction of antimicrobial properties as a potential application for food (as for example meat) packaging material. Adsorption/desorption of chitosan onto PET plastic film surface was studied using several analytical techniques such as: X-Ray Photoelectron Spectroscopy (XPS), ATR-FTIR spectroscopy and titrations. Kinetic desorption of chitosan from PET surface was analysed by polyelectrolyte titration and spectrophotometric Ninhydrine reaction. Standard antimicrobial test ASTM E2149-01 was performed for functionalised PET materials in order to determine their antimicrobial properties; i. e. to measure the reductions of some of the meat pathogens; such as bacteria Salmonella enterica, Campylobacter spp., Escherichia coli, Listeria monocytogenes and fungi Candida albicans. (c) 2012 Elsevier B.V. All rights reserved.
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