Electrospinning of zein-ethyl cellulose hybrid nanofibers with improved water resistance for food preservation.

Abstract

Zein electrospun nanofibers have poor water resistance, which restricts its applications in food preservation. To improve the water resistance of nanofibers, zein/ethyl cellulose (EC) hybrid nanofibers were prepared at different ratios. Besides, we also encapsulated cinnamon essential oil (CEO) into electrospun fibers for Agaricus bisporus preservation. As the weight ratio of EC increased from 0% (ZE-10) to 100% (ZE-01), the viscosity of electrospinning solutions gradually increased from 80.33 ± 19.23 mPa·s to 756.78 ± 22.48 mPa·s, resulting in sufficient chain entanglement for the preparation of uniform fibers. The average diameters of ZE-01, ZE-12, ZE-11, ZE-21, and ZE-10 nanofibers were 326 ± 53 nm, 267 ± 31 nm, 237 ± 51 nm, 292 ± 45 nm, and 362 ± 70 nm, respectively. The hydrogen bonds between the hydroxyl groups of ethyl cellulose and the amino groups of zein decreased the amount of free hydrophilic group, thus improving water resistance of nanofibers. Food packaging potential was evaluated using Agaricus bisporus. The zein/EC nanofibers loaded CEO significantly decreased weight loss and maintained the firmness of the Agaricus bisporus, and improved the quality of the Agaricus bisporus during storage.

• Authors: Ben Niu, Li Zhan, Ping Shao, Ning Xiang, Peilong Sun, Hangjun Chen, Haiyan Gao
• Journal: International journal of biological macromolecules (Int J Biol Macromol) Vol. 142 Pg. 592-599 (Jan 01 2020) ISSN: 1879-0003 [Electronic] Netherlands
• PMID: 31739036 (Publication Type: Journal Article)
• Copyright: Copyright © 2019 Elsevier B.V. All rights reserved.

Chemical References

• Water
• ethyl cellulose
• Cellulose
• Zein

Topics

• Agaricus (chemistry)
• Cellulose (analogs & derivatives, chemistry)
• Electricity
• Food Packaging
• Food Preservation (methods)
• Hydrogen Bonding
• Nanofibers (chemistry)
• Water (chemistry)
• Zein (chemistry)