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A novel multilayer film based on sodium alginate/k-carrageenan-gelatin incorporated with ZnO nanoparticles and oregano essential oil for active food packing

文献类型： 外文期刊

作者： Zhang, Xingguo 1 ; Zhang, Baoxue 1 ; Mao, Rongrong 1 ; Huang, Zulong 1 ; Jing, Keyan 1 ; Jin, Changchun 1 ; Yang, Bin 1 ; Qi, Jun 1 ; Yu, Manman 1 ; Xiong, Guoyuan 2 ; Hu, Yong 3 ;

作者机构： 1.Anhui Agr Univ, Coll Tea & Food Sci & Technol, Key Lab Jianghuai Agr Prod Fine Proc & Resource Ut, Minist Agr & Rural Affairs, Hefei 230036, Peoples R China

2.Anhui Sci & Technol Univ, Sch Food Engn, Chuzhou 233100, Peoples R China

3.Anhui Acad Agr Sci, Inst Agroprod Proc, Hefei 230031, Peoples R China

关键词： Multilayer film; Gelatin; ZnO nanoparticles; Oregano essential oil; Antibacterial ability; K-carrageenan

期刊名称：PROGRESS IN ORGANIC COATINGS （ 影响因子：6.6； 五年影响因子：5.9 ）

ISSN： 0300-9440

年卷期： 2024 年 187 卷

页码：

收录情况： SCI

摘要： Multi-layer active food packing films fabricated with outer layer made of sodium alginate (SA) and inner layer made of k-carrageenan (CAR) and gelatin (GEL) contained with oregano essential oil (OEO) and ZnO nanoparticles (ZnO NPs) were developed through layer-by-layer (LBL) assemble method and characterized in this study. The results of fourier transform infrared (FT-IR) demonstrated OEO, ZnO NPs and SA outer layers were successfully incorporated into the multi-layer film system by hydrogen bonding. ZnO NPs significantly improved the mechanical properties, thermal stability, UV resistance and retention of OEO of the films (P < 0.05). Scanning electron microscope (SEM) images clearly showed SA/CAR-GEL-OEO film and SA/CAR-GEL-OEO-ZnO NPs film had a bilayer structure. Noteworthy, the multi-layer films exhibited higher OEO retention compared to the mono-layer films, and compensated the negative effect of ZnO NPs and OEO on the light transmittance while enhancing the UV resistance of the films. The multi-layer films exhibited stronger antioxidant and antibacterial activity than mono-layer films. To summarize, the multi-layer films loaded with OEO and ZnO NPs enhanced antioxidant and antibacterial activities and displayed great potential as active packaging for food preservation.

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