Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 153, Issue -, Pages 55-62Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.03.016
Keywords
Gellan gum; 2-Hydroxyethyl cellulose; Lignin; Cytotoxicity; UV blocking; Biofilm
Funding
- Technology Innovation Program (or industrial strategic technology development program) - Ministry of Trade, Industry and Energy (MOTIE Korea) [10076409]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10076409] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Biopolymers of gellan gum (G), 2-hydroxyethyl cellulose (HEC), and lignin (L)-based binary and ternary sustainable composites were prepared for food packaging and biomedical application. The composite films were flexible and transparent or translucent with slight brown in color. The incorporation of lignin considerably improved the thermal and mechanical and hydrophobic properties of the composite films. The addition of 10 wt% of lignin to the composites increased the tensile strength by 54.3% and 59.2% respectively. The prepared lignin-based composite films showed high ultraviolet (UV) protection, with almost 100% protection against UVB (280-320 nm) and 90% against UVA (320-400 nm). The surface hydrophobicity of the composite films increased with the addition of lignin. The binary and ternary composites containing 1, 5, and 10 wt% lignin exhibited excellent radical scavenging activities. The gellan gum/HEC/lignin based composite films achieved the best biocompatibility. The obtained composites showed efficient antioxidant and non-cytotoxic activities, although there was no remarkable antimicrobial activity. (C) 2020 Elsevier B.V. All rights reserved.
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