Intelligent pH-sensing film based on polyvinyl alcohol/cellulose nanocrystal with purple cabbage anthocyanins for visually monitoring shrimp freshness

文献类型： 外文期刊

第一作者： He, Yunxia

作者： He, Yunxia;Lu, Lun;Lin, Yanyun;Li, Ruyi;Yuan, Yuan;Lu, Xuli;Zou, Ying;Zhou, Wei;Li, Jihua;Wang, Zhuo;Wang, Zhuo;Lu, Lun;Zhou, Wei

作者机构：

关键词： Intelligent pH-sensing film; Cellulose nanocrystals; Shrimp freshness

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）

ISSN： 0141-8130

年卷期： 2022 年 218 卷

页码：

收录情况： SCI

摘要： We aimed to prepare a new pH-sensing film based on the immobilization of purple cabbage anthocyanins (PCA) into Polyvinyl alcohol (PVA) reinforced by cellulose nanocrystals (CNC). FT-IR, XRD and TGA were used to assess the intermolecular interactions and thermo-stability of films. The addition of CNC and PCA resulted in an enhancement in UV-vis barrier, mechanical properties and moisture resistance. Inclusion of PCA imparted intelligent properties to the films. PCA-loaded films displayed strong visually detectable colorimetric responses to pH (2-13) and volatile ammonia. When applied to monitor shrimp freshness at 4 C, PVA/CNC films containing 0.6 % PCA exhibited conspicuous color fluctuations from purple to gray blue upon deterioration. As a result, PVA/CNC-PCA colorimetric films were considered as intelligent packaging labels with significant mechanical, water vapor barrier properties and pH-sensing qualities for visual quality evaluation of fresh seafood products.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序