The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions
Abstract 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 gelati...
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doaj-8bcfec2c8f8040c0b219db608550953a2020-11-25T01:30:54ZengWileyFood Science & Nutrition2048-71772019-12-017124140414610.1002/fsn3.1282The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditionsJunjie Lin0Daodong Pan1Yangying Sun2Changrong Ou3Ying Wang4Jinxuan Cao5Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaKey Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaKey Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaKey Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaKey Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaKey Laboratory of Animal Protein Food Processing Technology of Zhejiang Province Ningbo University Ningbo ChinaAbstract 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.https://doi.org/10.1002/fsn3.1282cross‐linking reactiongelatin filmsglutaraldehydepHphysical properties |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Junjie Lin Daodong Pan Yangying Sun Changrong Ou Ying Wang Jinxuan Cao |
spellingShingle |
Junjie Lin Daodong Pan Yangying Sun Changrong Ou Ying Wang Jinxuan Cao The modification of gelatin films: Based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions Food Science & Nutrition cross‐linking reaction gelatin films glutaraldehyde pH physical properties |
author_facet |
Junjie Lin Daodong Pan Yangying Sun Changrong Ou Ying Wang Jinxuan Cao |
author_sort |
Junjie Lin |
title |
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_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_sort |
modification of gelatin films: based on various cross‐linking mechanism of glutaraldehyde at acidic and alkaline conditions |
publisher |
Wiley |
series |
Food Science & Nutrition |
issn |
2048-7177 |
publishDate |
2019-12-01 |
description |
Abstract 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. |
topic |
cross‐linking reaction gelatin films glutaraldehyde pH physical properties |
url |
https://doi.org/10.1002/fsn3.1282 |
work_keys_str_mv |
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