A water-resistant egg white/chitosan/pectin blending film with spherical-linear molecular interpenetrating network strengthened by multifunctional tannin-nisin nanoparticles

被引：7

作者：

Qin, Xianmin ^{[1
]}

Cai, Xue ^{[1
]}

Wang, Yilin ^{[1
]}

Chen, Linqin ^{[1
]}

Zhao, Jingjing ^{[1
]}

Zhang, Yifan ^{[1
]}

Bi, Shenghui ^{[1
]}

Zhou, Ying ^{[1
]}

Zhu, Qiujin ^{[1
]}

Cheng, Yuxin ^{[1
]}

Liu, Yuanyuan ^{[1
]}

机构：

[1] Guizhou Univ, Sch Liquor & Food Engn, Guiyang 550025, Guizhou, Peoples R China

来源：

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2024年 / 277卷

基金：

中国国家自然科学基金;

关键词：

Multifunctional nanoparticles; Microstructure transition; Chitosan deprotonation; Egg white protein; Water resistance; CHITOSAN; PECTIN;

D O I：

10.1016/j.ijbiomac.2024.134548

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Edible films are effective alternatives to plastic packaging, however, the hydrophilicity of edible films based on protein and polysaccharide limits the application. Therefore, we fabricated a water-stable hybrid film with a linear-spherical interpenetrating molecular topology network using egg white (EW), chitosan (CS), and pectin. Meanwhile, the nisin-tannin acid self-assembly complex nanoparticles were employed as a multifunctional crosslinker, antibacterial and antioxidant agent to improve the performance of films. The FTIR, XRD, and SEM analysis revealed that the conformation and crystalline structure rearrangement of chitosan induced by the alkaline environment provided by egg white enhanced the network structure of films, effectively avoided the addition of modifying reagents. The proposed hybrid films exhibited excellent properties, with EW/TNPCS3 showing the best overall performance. The water contact angle (WCA) increased to 105.27 +/- 1.62 degrees, and its dissolution and swelling rates were significantly lower than pure egg white and pure chitosan films. Moreover, tannin-nisin (TN) nanoparticles endowed the films with excellent antimicrobial activity against the common Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria. Thus, the prepared blending films have great application potential in food preservation, especially to maintain stable performance in high humidity environment.

引用

页数：13