The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions

In order to investigate the effect of glutaraldehyde (GTA) on the structure, mechanical properties and thermal stability of gelatin films, gelatin films modified by GTA at various pH (4.5, 6.5, and 11), were prepared. According to FTIR analysis, the reaction mechanism between GTA and gelatin was dif...

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Detalles Bibliográficos
Autores principales: Lin, Junjie, Pan, Daodong, Sun, Yangying, Ou, Changrong, Wang, Ying, Cao, Jinxuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Original Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6924296/
https://www.ncbi.nlm.nih.gov/pubmed/31890193
http://dx.doi.org/10.1002/fsn3.1282
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author Lin, Junjie
Pan, Daodong
Sun, Yangying
Ou, Changrong
Wang, Ying
Cao, Jinxuan
author_facet Lin, Junjie
Pan, Daodong
Sun, Yangying
Ou, Changrong
Wang, Ying
Cao, Jinxuan
author_sort Lin, Junjie
collection PubMed
description In order to investigate the effect of glutaraldehyde (GTA) on the structure, mechanical properties and thermal stability of gelatin films, gelatin films modified by GTA at various pH (4.5, 6.5, and 11), were prepared. According to FTIR analysis, the reaction mechanism between GTA and gelatin was different at various pH. With the addition of GTA, the intermolecular forces (hydrogen bonds and ionic bonds) and triple helix structure of gelatin film were significantly disrupted. At pH 4.5, gelatin films modified by GTA showed the highest mechanical properties and thermal stability among all films, which tensile strength and residues in TGA up to 16.13 MPa and 15.05%, respectively. Therefore, an optimum pH was around 4.5 in gelatin films cross‐linked by GTA.
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spelling pubmed-69242962019-12-30 The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions Lin, Junjie Pan, Daodong Sun, Yangying Ou, Changrong Wang, Ying Cao, Jinxuan Food Sci Nutr Original Research In order to investigate the effect of glutaraldehyde (GTA) on the structure, mechanical properties and thermal stability of gelatin films, gelatin films modified by GTA at various pH (4.5, 6.5, and 11), were prepared. According to FTIR analysis, the reaction mechanism between GTA and gelatin was different at various pH. With the addition of GTA, the intermolecular forces (hydrogen bonds and ionic bonds) and triple helix structure of gelatin film were significantly disrupted. At pH 4.5, gelatin films modified by GTA showed the highest mechanical properties and thermal stability among all films, which tensile strength and residues in TGA up to 16.13 MPa and 15.05%, respectively. Therefore, an optimum pH was around 4.5 in gelatin films cross‐linked by GTA. John Wiley and Sons Inc. 2019-11-19 /pmc/articles/PMC6924296/ /pubmed/31890193 http://dx.doi.org/10.1002/fsn3.1282 Text en © 2019 The Authors. Food Science & Nutrition published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Lin, Junjie
Pan, Daodong
Sun, Yangying
Ou, Changrong
Wang, Ying
Cao, Jinxuan
The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title_full The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title_fullStr The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title_full_unstemmed The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title_short The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
title_sort modification of gelatin films: based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6924296/
https://www.ncbi.nlm.nih.gov/pubmed/31890193
http://dx.doi.org/10.1002/fsn3.1282
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