Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 120, Issue -, Pages 1256-1264Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2018.08.187
Keywords
Chitosan; Citric acid; Crosslinking; Alkali treatment; Bioproducts
Funding
- CIIRC, Jyothy Institute of Technology, Thathaguni
- Department of Biotechnology, Ministry of Science and Technology, Government of India
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In this research, sustainable and green bioproducts with controlled sorption and good mechanical properties have been developed from chitosan for commercial applications. Addition of citric acid, a biocompatible crosslinker, and later treating with alkali imparts excellent tensile strength and aqueous stability to the chitosan films. Films were developed from chitosan and studied for their sorption capabilities, mechanical properties, oxygen/water vapour transmission rates and antimicrobial abilities. Moisture sorption of up to 1466% based on the dry weight of chitosan was seen when the films were untreated. However, treating the films with alkali decreased their water sorption to 100-250% and made the films resistant even to boiling water. Modified chitosan could be moulded into various forms and made into bioproducts that could replace plastic based materials. The chitosan bioproducts developed have the potential to replace plastic based products and will help to provide a greener alternative for the plastic based commodity products in current use. (C) 2018 Elsevier B.V. All rights reserved.
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