Preparation and Characterization of Edible Dialdehyde Carboxymethyl Cellulose Crosslinked Feather Keratin Films for Food Packaging

被引：35
作者：
Dou, Yao [1 ,3 ]
Zhang, Liguang [2 ]
Zhang, Buning [4 ]
He, Ming [4 ]
Shi, Weimei [1 ]
Yang, Shiqing [1 ]
Cui, Yingde [5 ]
Yin, Guoqiang [4 ]
机构：
[1] Chengdu Polytech, Innovat & Practice Base Postdoctors, Chengdu 610041, Sichuan, Peoples R China
[2] Suzhou Vocat Hlth Coll, Coll Pharm, Suzhou 215009, Jiangsu, Peoples R China
[3] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610041, Sichuan, Peoples R China
[4] Zhongkai Univ Agr & Engn, Green Chem Engn Inst, Guangzhou 510225, Guangdong, Peoples R China
[5] Guangzhou Vocat & Tech Univ Sci & Technol, Guangzhou 510550, Guangdong, Peoples R China
来源：
POLYMERS | 2020年 / 12卷 / 01期
关键词：
feather keratin; dialdehyde carboxymethyl cellulose; crosslinking; edible film; WATER-VAPOR PERMEABILITY; TENSILE PROPERTIES; MECHANICAL-PROPERTIES; POTENTIAL APPLICATION; PHYSICAL-PROPERTIES; BARRIER PROPERTIES; PEA STARCH; GELATIN; PLASTICIZERS; LINKING;
D O I：
10.3390/polym12010158
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The development of edible films based on the natural biopolymer feather keratin (FK) from poultry feathers is of great interest to food packaging. Edible dialdehyde carboxymethyl cellulose (DCMC) crosslinked FK films plasticized with glycerol were prepared by a casting method. The effect of DCMC crosslinking on the microstructure, light transmission, aggregate structure, tensile properties, water resistance and water vapor barrier were investigated. The results indicated the formation of both covalent and hydrogen bonding between FK and DCMC to form amorphous FK/DCMC films with good UV-barrier properties and transmittance. However, with increasing DCMC content, a decrease in tensile strength of the FK films indicated that plasticization, induced by hydrophilic properties of the DCMC, partly offset the crosslinking effect. Reduction in the moisture content, solubility and water vapor permeability indicated that DCMC crosslinking slightly reduced the moisture sensitivity of the FK films. Thus, DCMC crosslinking increased the potential viability of the FK films for food packaging applications, offering a value-added product.
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页数：11
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