壳聚糖
埃洛石
材料科学
Zeta电位
化学工程
香芹酚
活性包装
扫描电子显微镜
极限抗拉强度
傅里叶变换红外光谱
抗菌活性
复合材料
食品包装
纳米技术
化学
有机化学
纳米颗粒
食品科学
抗菌剂
遗传学
生物
细菌
工程类
作者
Yuemei Zhang,Lijing Lu,Jing Xu,Haoyue Ning,Lixin Lu
标识
DOI:10.1016/j.foodhyd.2023.109102
摘要
The chitosan (CS)-based bioactive packaging film with good antibacterial and antioxidant activities was developed using AHNT (modified halloysite nanotube) loaded with carvacrol (AHNT-Car) as the nanofiller. The zeta potential, Fourier transform infrared, and rheology analysis indicated that hydrogen bonding and electrostatic interactions were formed between AHNT-Car and CS film substrate, and scanning electron microscope images exhibited that the cross-sections of the bioactive film were denser. The mechanical and barrier properties (water vapor, oxygen, and light barrier properties) of the bioactive film were enhanced by adding AHNT-Car due to the hydrogen bonding, electrostatic interactions, and compact structure. Specifically, when the additional amount of AHNT-Car was 10 wt%, the film's tensile, oxygen barrier, and water vapor barrier properties were improved by 49.7%, 36.78%, and 11.92%, respectively. Moreover, compared to CS-Car film (adding Car into the CS film directly), the CS-10% film (AHNT-Car added at 10 wt%) had a slow-release effect on Car and could effectively protect the Car from external high temperature and UV light. In addition, the prepared bioactive film had sustained antioxidant and antibacterial properties and could significantly slow down the spoilage of pork during storage, proving the promising application of the bioactive film as food packaging.
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