Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose

Background: Gelatin is a renewable, biodegradable, and inexpensive food polymer. The insufficient mechanical and functional properties of gelatin-based films (GBF) restrict their commercial application in food packaging. This work proposed a facile strategy to prepare an active and robust GBF that h...

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Autores principales:	Yinghua Luo, Yanbei Wu, Yali Wang, Liangli (Lucy) Yu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	gelatin gallic acid active film microfibrillated cellulose reinforcement Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/9f14e3cb6d4742d4a8e65dc73fc4b536
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spelling	oai:doaj.org-article:9f14e3cb6d4742d4a8e65dc73fc4b5362021-11-25T17:36:11ZActive and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose10.3390/foods101128312304-8158https://doaj.org/article/9f14e3cb6d4742d4a8e65dc73fc4b5362021-11-01T00:00:00Zhttps://www.mdpi.com/2304-8158/10/11/2831https://doaj.org/toc/2304-8158Background: Gelatin is a renewable, biodegradable, and inexpensive food polymer. The insufficient mechanical and functional properties of gelatin-based films (GBF) restrict their commercial application in food packaging. This work proposed a facile strategy to prepare an active and robust GBF that has the potential to be used in food packaging. Methods: A strong and active GBF was prepared based on the principle of supramolecular chemistry via the incorporation of gallic acid (GA) as an active crosslinking agent and of microfibrillated cellulose (MFC) as a reinforcing agent. Results: Under the appropriate concentration (1.0 wt%), MFC was evenly dispersed in a gelatin matrix to endow the film with low surface roughness and compact structure. Compared with the GF, the tensile strength and elongation at break of the resultant film reached 6.09 MPa and 213.4%, respectively, representing the corresponding improvement of 12.8% and 27.6%. Besides, a significantly improved water vapor barrier (from 3.985 × 10<sup>−8</sup> to 3.894 × 10<sup>−8</sup> g·m<sup>−1</sup>·Pa<sup>−1</sup>·s<sup>−1</sup>) and antioxidant activity (from 54.6% to 86.4% for ABTS radical scavenging activity; from 6.0% to 89.1% for DPPH radical scavenging activity) of GBFs were also observed after introducing the aromatic structure of GA and nano-/microfibrils in MFC. Moreover, the UV blocking performance and thermal stability of GGF and GGCFs were also enhanced. Conclusions: this work paves a promising way toward facile preparation of multifunctional GBFs that have great potential to be used in fabricating active and safe food packaging materials for food preservation.Yinghua LuoYanbei WuYali WangLiangli (Lucy) YuMDPI AGarticlegelatingallic acidactive filmmicrofibrillated cellulosereinforcementChemical technologyTP1-1185ENFoods, Vol 10, Iss 2831, p 2831 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	gelatin gallic acid active film microfibrillated cellulose reinforcement Chemical technology TP1-1185
spellingShingle	gelatin gallic acid active film microfibrillated cellulose reinforcement Chemical technology TP1-1185 Yinghua Luo Yanbei Wu Yali Wang Liangli (Lucy) Yu Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
description	Background: Gelatin is a renewable, biodegradable, and inexpensive food polymer. The insufficient mechanical and functional properties of gelatin-based films (GBF) restrict their commercial application in food packaging. This work proposed a facile strategy to prepare an active and robust GBF that has the potential to be used in food packaging. Methods: A strong and active GBF was prepared based on the principle of supramolecular chemistry via the incorporation of gallic acid (GA) as an active crosslinking agent and of microfibrillated cellulose (MFC) as a reinforcing agent. Results: Under the appropriate concentration (1.0 wt%), MFC was evenly dispersed in a gelatin matrix to endow the film with low surface roughness and compact structure. Compared with the GF, the tensile strength and elongation at break of the resultant film reached 6.09 MPa and 213.4%, respectively, representing the corresponding improvement of 12.8% and 27.6%. Besides, a significantly improved water vapor barrier (from 3.985 × 10<sup>−8</sup> to 3.894 × 10<sup>−8</sup> g·m<sup>−1</sup>·Pa<sup>−1</sup>·s<sup>−1</sup>) and antioxidant activity (from 54.6% to 86.4% for ABTS radical scavenging activity; from 6.0% to 89.1% for DPPH radical scavenging activity) of GBFs were also observed after introducing the aromatic structure of GA and nano-/microfibrils in MFC. Moreover, the UV blocking performance and thermal stability of GGF and GGCFs were also enhanced. Conclusions: this work paves a promising way toward facile preparation of multifunctional GBFs that have great potential to be used in fabricating active and safe food packaging materials for food preservation.
format	article
author	Yinghua Luo Yanbei Wu Yali Wang Liangli (Lucy) Yu
author_facet	Yinghua Luo Yanbei Wu Yali Wang Liangli (Lucy) Yu
author_sort	Yinghua Luo
title	Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
title_short	Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
title_full	Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
title_fullStr	Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
title_full_unstemmed	Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose
title_sort	active and robust composite films based on gelatin and gallic acid integrated with microfibrillated cellulose
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/9f14e3cb6d4742d4a8e65dc73fc4b536
work_keys_str_mv	AT yinghualuo activeandrobustcompositefilmsbasedongelatinandgallicacidintegratedwithmicrofibrillatedcellulose AT yanbeiwu activeandrobustcompositefilmsbasedongelatinandgallicacidintegratedwithmicrofibrillatedcellulose AT yaliwang activeandrobustcompositefilmsbasedongelatinandgallicacidintegratedwithmicrofibrillatedcellulose AT lianglilucyyu activeandrobustcompositefilmsbasedongelatinandgallicacidintegratedwithmicrofibrillatedcellulose
_version_	1718412182846177280

Active and Robust Composite Films Based on Gelatin and Gallic Acid Integrated with Microfibrillated Cellulose

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