Chemical Industry and Engineering Progress ›› 2025, Vol. 44 ›› Issue (6): 3550-3560.DOI: 10.16085/j.issn.1000-6613.2024-0663

• Materials science and technology • Previous Articles    

Preparation and properties of CS/SA composite gel membrane based on blueberry anthocyanins

ZHANG Min1,2,3,4(), ZHAO Yamin1,2,3,4(), ZHANG Peichun1,2,3,4, ZHANG Bin1,2,3,4, QI Yanjiao1,2,3,4, ZHANG Hong1,2,3,4, CHEN Lihua1,2,3,4   

  1. 1.School of Chemical Engineering, Northwest Minzu University, Lanzhou 730124, Gansu, China
    2.Key Laboratory of Environment-Friendly Composites of the State Ethnic Affairs Commission, Northwest Minzu University, Lanzhou 730124, Gansu, China
    3.Gansu Provincial Biomass Function Composites Engineering Research Center, Northwest Minzu University, Lanzhou 730124, Gansu, China
    4.Key Laboratory for Utility of Environment-Friendly Composites and Biomass in Universities of Gansu Province, Northwest Minzu University, Lanzhou 730124, Gansu, China
  • Received:2024-04-19 Revised:2024-06-17 Online:2025-07-08 Published:2025-06-25
  • Contact: ZHAO Yamin

基于蓝莓花青素的CS/SA智能指示复合凝胶膜的制备及性能

张敏1,2,3,4(), 赵娅敏1,2,3,4(), 张沛春1,2,3,4, 张斌1,2,3,4, 齐燕姣1,2,3,4, 张宏1,2,3,4, 陈丽华1,2,3,4   

  1. 1.西北民族大学化工学院,甘肃 兰州 730124
    2.西北民族大学环境友好复合材料国家民委重点实验室,甘肃 兰州 730124
    3.西北民族大学甘肃省生物质功能复合材料工程研究中心,甘肃 兰州 730124
    4.西北民族大学 甘肃省高校环境友好复合材料及生物质利用重点实验室,甘肃 兰州 730124
  • 通讯作者: 赵娅敏
  • 作者简介:张敏(1998—),女,硕士研究生,研究方向为复合材料的制备。E-mail:2550614342@qq.com
  • 基金资助:
    中央高校基本科研业务费项目(31920240115);中央高校基本科研业务费项目(31920190079)

Abstract:

Blueberry anthocyanins were utilized to prepare into freshness indicator films, which were made of chitosan and sodium alginate by solution casting method. The color changes of anthocyanins under different pH buffer solutions were analyzed, and the effects of different anthocyanin additions on the chitosan/sodium alginate composite film in terms of thickness, mechanical property, water content, solubility, water solubility, infrared spectroscopy, surface microstructure, light transmittance, contact angle and antioxidant activity. The experimental results showed that the indicator film exhibited the strongest antioxidant performance when the content of anthocyanin was 10mg, while its water content was the lowest. The best sensitivity was found when the added amount of anthocyanin was 50mg. It indicated from the experiments that the data of Fourier infrared spectroscopy and scanning electron microscopy showed that there was a good compatibility between the blueberry anthocyanin and the two membrane materials it was coupled with, and that it could enhance the affinity between the components. The performance and feasibility were analyzed under ambient conditions, and the color of the indicated membranes changed from red to dark green. The results of the study were aimed to provide reference for the application of anthocyanin smart indicator film in the specialty pork in Gansu region.

Key words: anthocyanin, chitosan, sodium alginate, composite gel membrane

摘要:

利用蓝莓花青素制备成食品新鲜度智能指示复合凝胶膜,本文以壳聚糖和海藻酸钠为材料,通过溶液浇铸法完成。通过分析花青素在不同pH缓冲溶液下的颜色变化,不同花青素添加量对壳聚糖/海藻酸钠复合凝胶膜在厚度、力学性能、含水量、溶胀度、水溶性、红外光谱、表面微观结构、透光率、接触角以及抗氧化活性等方面的影响,证实当花青素的含量为10mg时,复合凝胶膜表现出最强的抗氧化性能,同时其含水量最低;当花青素的添加量为50mg时,复合凝胶膜具有最佳的食品新鲜度指示的灵敏度。傅里叶红外光谱和扫描电镜的数据显示,蓝莓花青素与两种膜基质之间有很好的相容性,并且能够相互提升各组成部分之间的亲和力。在环境条件下,分析智能指示复合凝胶膜的性能和可行性,猪肉经过24h的储存,膜的颜色会从红色变成深绿色。研究结果旨在为花青素智能指示复合凝胶膜在甘肃地区特色猪肉中的应用提供参考。

关键词: 花青素, 壳聚糖, 海藻酸钠, 复合凝胶膜

CLC Number: 

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