Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin

The development of functional edible films is promising for the food industry, and improving the water barrier of edible films has been a research challenge in recent years. In this study, curcumin (Cur) was added to zein (Z) and shellac (S) to prepare an edible composite film with a strong water ba...

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Main Authors: Tao Han, Wenxue Chen, Qiuping Zhong, Weijun Chen, Yaping Xu, Jiawu Wu, Haiming Chen
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/12/8/1577
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author Tao Han
Wenxue Chen
Qiuping Zhong
Weijun Chen
Yaping Xu
Jiawu Wu
Haiming Chen
author_facet Tao Han
Wenxue Chen
Qiuping Zhong
Weijun Chen
Yaping Xu
Jiawu Wu
Haiming Chen
author_sort Tao Han
collection DOAJ
description The development of functional edible films is promising for the food industry, and improving the water barrier of edible films has been a research challenge in recent years. In this study, curcumin (Cur) was added to zein (Z) and shellac (S) to prepare an edible composite film with a strong water barrier and antioxidant properties. The addition of curcumin significantly reduced the water vapor permeability (WVP), water solubility (WS), and elongation at break (EB), and it clearly improved the tensile strength (TS), water contact angle (WCA), and optical properties of the composite film. The ZS–Cur films were characterized by SEM, FT-IR, XRD, DSC, and TGA; the results indicated that hydrogen bonds were formed among the curcumin, zein, and shellac, which changed the microstructure and improved the thermal stability of the film. A test of curcumin release behavior showed controlled release of curcumin from the film matrix. ZS–Cur films displayed remarkable pH responsiveness, strong antioxidant properties, and inhibitory effects on <i>E. coli</i>. Therefore, the insoluble active food packaging prepared in this study provides a new strategy for the development of functional edible films and also provides a possibility for the application of edible films to extend the shelf life of fresh food.
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spelling doaj.art-fec6c160049141f3ad87e6e2499093992023-11-17T19:13:39ZengMDPI AGFoods2304-81582023-04-01128157710.3390/foods12081577Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with CurcuminTao Han0Wenxue Chen1Qiuping Zhong2Weijun Chen3Yaping Xu4Jiawu Wu5Haiming Chen6HNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaHNU-HSF/LWL Collaborative Innovation Laboratory, School of Food Science and Engineering, Hainan University, 58 Renmin Road, Haikou 570228, ChinaThe development of functional edible films is promising for the food industry, and improving the water barrier of edible films has been a research challenge in recent years. In this study, curcumin (Cur) was added to zein (Z) and shellac (S) to prepare an edible composite film with a strong water barrier and antioxidant properties. The addition of curcumin significantly reduced the water vapor permeability (WVP), water solubility (WS), and elongation at break (EB), and it clearly improved the tensile strength (TS), water contact angle (WCA), and optical properties of the composite film. The ZS–Cur films were characterized by SEM, FT-IR, XRD, DSC, and TGA; the results indicated that hydrogen bonds were formed among the curcumin, zein, and shellac, which changed the microstructure and improved the thermal stability of the film. A test of curcumin release behavior showed controlled release of curcumin from the film matrix. ZS–Cur films displayed remarkable pH responsiveness, strong antioxidant properties, and inhibitory effects on <i>E. coli</i>. Therefore, the insoluble active food packaging prepared in this study provides a new strategy for the development of functional edible films and also provides a possibility for the application of edible films to extend the shelf life of fresh food.https://www.mdpi.com/2304-8158/12/8/1577zeinshellaccurcuminedible filmfunctionality
spellingShingle Tao Han
Wenxue Chen
Qiuping Zhong
Weijun Chen
Yaping Xu
Jiawu Wu
Haiming Chen
Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
Foods
zein
shellac
curcumin
edible film
functionality
title Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
title_full Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
title_fullStr Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
title_full_unstemmed Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
title_short Development and Characterization of an Edible Zein/Shellac Composite Film Loaded with Curcumin
title_sort development and characterization of an edible zein shellac composite film loaded with curcumin
topic zein
shellac
curcumin
edible film
functionality
url https://www.mdpi.com/2304-8158/12/8/1577
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AT qiupingzhong developmentandcharacterizationofanediblezeinshellaccompositefilmloadedwithcurcumin
AT weijunchen developmentandcharacterizationofanediblezeinshellaccompositefilmloadedwithcurcumin
AT yapingxu developmentandcharacterizationofanediblezeinshellaccompositefilmloadedwithcurcumin
AT jiawuwu developmentandcharacterizationofanediblezeinshellaccompositefilmloadedwithcurcumin
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