Preparation and comparison of two functional nanoparticle-based bilayers reinforced with a κ-carrageenan-anthocyanin complex

Li Liu; Junjun Zhang; Jiyong Shi; Xiaowei Huang; Xiaobo Zou; Di Zhang; Xiaodong Zhai; Zhikun Yang; Zhihua Li; Yanxiao Li

doi:10.1016/j.ijbiomac.2020.09.178

Preparation and comparison of two functional nanoparticle-based bilayers reinforced with a κ-carrageenan-anthocyanin complex

Int J Biol Macromol. 2020 Dec 15;165(Pt A):758-766. doi: 10.1016/j.ijbiomac.2020.09.178. Epub 2020 Sep 24.

Authors

Li Liu¹, Junjun Zhang¹, Jiyong Shi², Xiaowei Huang³, Xiaobo Zou⁴, Di Zhang¹, Xiaodong Zhai¹, Zhikun Yang¹, Zhihua Li¹, Yanxiao Li¹

Affiliations

¹ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
² Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address: shi_jiyong@ujs.edu.cn.
³ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address: huangxiaowei@ujs.edu.cn.
⁴ Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address: zou_xiaobo@ujs.edu.cn.

PMID: 32979439
DOI: 10.1016/j.ijbiomac.2020.09.178

Abstract

In the present study, two pH-sensitive bilayer films were developed and compared. Agar matrix incorporated with ZnO nanoparticles (NPs) or TiO₂ NPs were combined with the infrastructure of a κ-carrageenan-Clitoria ternatea Linn anthocyanin (CA-CTLA) layer, denoted as AG-ZnO/CA-CTLA film and AG-TiO₂/CA-CTLA film, respectively. The CA-CTLA layer was defined as the sensing layer, whereas the AG-TiO₂ (or AG-ZnO) layer was the protective layer that enhanced the mechanical properties and colour stability. The AG-TiO₂/CA-CTLA film displayed superior UV-vis light barrier property, pH sensitivity, and physical properties. The film's elongation at break and water vapour permeability were 57.08%, and 2.72 × 10^-6 g.m^-1.h^-1.pa^-1, respectively. Notably, the AG-TiO₂/CA-CTLA film possessed the highest UV-vis light barrier properties, and the transmittance was close to 0 in the UV region. Furthermore, these films exhibited visual colour changes in the buffer solution (pH 2.0-12.0), ammonia vapour (80 M), and pork spoilage trials. Therefore, the bilayer films have promising properties for food packaging, especially the AG-TiO₂ NPs/CA-CTLA film.

Keywords: Agar; Clitoria ternatea Linn anthocyanin; TiO(2) nanoparticle; ZnO nanoparticle; pH indicator; κ-Carrageenan.

Publication types

Comparative Study

MeSH terms

Anthocyanins / chemistry*
Carrageenan / chemistry*
Food Packaging*
Food Preservation*
Hydrogen-Ion Concentration
Nanoparticles / chemistry*
Permeability
Pork Meat*

Substances

Anthocyanins
Carrageenan