CMC-based functional film incorporated with copper-doped TiO2 to prevent banana browning

被引：89

作者：

Ezati, Parya ^{[1
]}

Riahi, Zohreh ^{[1
,2
]}

Rhim, Jong-Whan ^{[1
]}

机构：

[1] Kyung Hee Univ, Dept Food & Nutr, BioNanocomposite Res Ctr, 26 Kyungheedae Ro, Seoul 02447, South Korea

[2] Sharif Univ Technol, Inst Nanosci & Nanotechnol, Tehran, Iran

来源：

FOOD HYDROCOLLOIDS | 2022年 / 122卷

基金：

新加坡国家研究基金会;

关键词：

TiO2; Cu-doped TiO2; CMC; Photocatalytic activity; Banana; Shelf life extension; DIOXIDE NANOCOMPOSITE FILM; PHOTOCATALYTIC DEGRADATION; ANTIMICROBIAL ACTIVITY; MUSA-SPP; ETHYLENE; FABRICATION; NANOPARTICLES; COMPOSITES; COATINGS; FRUIT;

D O I：

10.1016/j.foodhyd.2021.107104

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Titanium dioxide (TiO2) and Cu-doped TiO2 (Cu-TiO2) were synthesized using a sol-gel method and used as nanofillers to prepare CMC-based functional packaging films. The Cu-TiO2 was spherical particles with a size range of 66.1 +/- 9.0 nm TiO2 and Cu-TiO2 nanoparticles had good compatibility with CMC and were evenly distributed in the CMC polymer matrix to form a composite film. The TiO2-added film did not show significant antibacterial activity, but the Cu-TiO2-added film exhibited high antibacterial activity against foodborne pathogenic bacteria (L. monocytogenes and E. coli) under visible light. When bananas were packaged with the CMC-based films, the CMC/Cu-TiO2 film effectively delayed the banana's browning. With strong antibacterial and ethylene scavenging capabilities under visible light, the CMC/Cu-TiO2 film has a high potential for active food packaging applications, especially in extending the shelf life of fruit.

引用

页数：11

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