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Interactions of fish gelatin and chitosan in uncrosslinked and crosslinked with EDC films: FT-IR study

Abstrakt

Films based on fish gelatin, chitosan and blend of fish gelatin and chitosan before and after cross-linking with EDC have been characterized by FT-IR spectroscopy. The FT-IR spectrum of fish gelatin film showed the characteristic amide I, amide II and amide III bands, and the FT-IR spectrum of chitosan film confirmed that the polymer was only a partially deacetylated product, and included CH3-C=O and NH2 groups, the latter both in their free –NH2 and protonated –NH3+ form. Analysis of FT-IR spectra of twocomponent, fish gelatin–chitosan film revealed the formation not only of hydrogen bonds within and between chains of polymers, but also of electrostatic interactions between –COO- of gelatin and –NH3+ of chitosan. Modification with EDC provided cross-linking of composites of the film. New iso-peptide bonds formed between activated carboxylic acid groups of glutamic or aspartic acid residue of gelatin and amine groups of gelatin or/and chitosan.

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Wersja publikacji
Accepted albo Published Version
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Creative Commons: CC-BY-NC-ND otwiera się w nowej karcie

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY nr 117, strony 707 - 712,
ISSN: 1386-1425
Język:
angielski
Rok wydania:
2014
Opis bibliograficzny:
Staroszczyk H., Sztuka K., Wolska J., Wojtasz-Pająk A., Kołodziejska I.: Interactions of fish gelatin and chitosan in uncrosslinked and crosslinked with EDC films: FT-IR study// SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY. -Vol. 117, (2014), s.707-712
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.saa.2013.09.044
Weryfikacja:
Politechnika Gdańska

wyświetlono 242 razy

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