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Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio

Biomaterials based on polyelectrolyte complexation are an innovative concept of coatings and packaging production to be applied in a wide range of food products. The aim of this study was to obtain and characterize a sodium alginate–chitosan complex material with variable degree of polyion interacti...

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Autores principales: Kulig, Dominika, Zimoch-Korzycka, Anna, Jarmoluk, Andrzej, Marycz, Krzysztof
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432350/
https://www.ncbi.nlm.nih.gov/pubmed/30979272
http://dx.doi.org/10.3390/polym8050167
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author Kulig, Dominika
Zimoch-Korzycka, Anna
Jarmoluk, Andrzej
Marycz, Krzysztof
author_facet Kulig, Dominika
Zimoch-Korzycka, Anna
Jarmoluk, Andrzej
Marycz, Krzysztof
author_sort Kulig, Dominika
collection PubMed
description Biomaterials based on polyelectrolyte complexation are an innovative concept of coatings and packaging production to be applied in a wide range of food products. The aim of this study was to obtain and characterize a sodium alginate–chitosan complex material with variable degree of polyion interactions by complexation of oppositely charged polysaccharides. In order to characterize polyelectrolyte complexes, theromogravimetric analysis (TGA), dynamic mechanical thermal analysis (DMTA), nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FT-IR), matrix-assisted laser desorption/ionization technique with time of flight analyzer (MALDI-TOF), and scanning electron microscopy (SEM) were performed. TGA analysis showed that thermal decomposition temperature depends on the polymer ratio (R) and thermal resistance of samples was improved by increasing chitosan dosage. Accordingly to DMTA results, polyelectrolyte complexation led to obtain more flexible and resistant to mechanical deformation materials. Comparative analysis of the FTIR spectra of single polyelectrolytes, chitosan and alginate, and their mixtures indicated the formation of the polyelectrolyte complex without addition of reinforcing substances. MALDI-TOF analysis confirms the creation of polyelectrolyte aggregates (~197 Da) in samples with R ≥ 0.8; and their chemical stability and safety were proven by NMR analysis. The higher R the greater the number of polyanion–polycation aggregates seen in SEM as film morphology roughness.
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spelling pubmed-64323502019-04-02 Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio Kulig, Dominika Zimoch-Korzycka, Anna Jarmoluk, Andrzej Marycz, Krzysztof Polymers (Basel) Article Biomaterials based on polyelectrolyte complexation are an innovative concept of coatings and packaging production to be applied in a wide range of food products. The aim of this study was to obtain and characterize a sodium alginate–chitosan complex material with variable degree of polyion interactions by complexation of oppositely charged polysaccharides. In order to characterize polyelectrolyte complexes, theromogravimetric analysis (TGA), dynamic mechanical thermal analysis (DMTA), nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FT-IR), matrix-assisted laser desorption/ionization technique with time of flight analyzer (MALDI-TOF), and scanning electron microscopy (SEM) were performed. TGA analysis showed that thermal decomposition temperature depends on the polymer ratio (R) and thermal resistance of samples was improved by increasing chitosan dosage. Accordingly to DMTA results, polyelectrolyte complexation led to obtain more flexible and resistant to mechanical deformation materials. Comparative analysis of the FTIR spectra of single polyelectrolytes, chitosan and alginate, and their mixtures indicated the formation of the polyelectrolyte complex without addition of reinforcing substances. MALDI-TOF analysis confirms the creation of polyelectrolyte aggregates (~197 Da) in samples with R ≥ 0.8; and their chemical stability and safety were proven by NMR analysis. The higher R the greater the number of polyanion–polycation aggregates seen in SEM as film morphology roughness. MDPI 2016-05-04 /pmc/articles/PMC6432350/ /pubmed/30979272 http://dx.doi.org/10.3390/polym8050167 Text en © 2016 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kulig, Dominika
Zimoch-Korzycka, Anna
Jarmoluk, Andrzej
Marycz, Krzysztof
Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title_full Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title_fullStr Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title_full_unstemmed Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title_short Study on Alginate–Chitosan Complex Formed with Different Polymers Ratio
title_sort study on alginate–chitosan complex formed with different polymers ratio
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6432350/
https://www.ncbi.nlm.nih.gov/pubmed/30979272
http://dx.doi.org/10.3390/polym8050167
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