李卓渊,赵红梅,马晓丽,杨艳君,罗爱国.基于壳聚糖/蓝莓花青素/二氧化钛肉制品新鲜度指示膜的制备及性能表征[J].包装工程,2025,(5):92-100.
LI Zhuoyuan,ZHAO Hongmei,MA Xiaoli,YANG Yanjun,LUO Aiguo.Preparation and Performance Characterization of Chitosan/Blueberry Anthocyanin/Titanium Dioxide Based Freshness Indicator Films for Meat Products[J].Packaging Engineering,2025,(5):92-100. |
| 基于壳聚糖/蓝莓花青素/二氧化钛肉制品新鲜度指示膜的制备及性能表征 |
| Preparation and Performance Characterization of Chitosan/Blueberry Anthocyanin/Titanium Dioxide Based Freshness Indicator Films for Meat Products |
| 投稿时间：2024-12-12 |
| DOI：10.19554/j.cnki.1001-3563.2025.05.012 |
| 中文关键词: 蓝莓花青素 壳聚糖 二氧化钛 色差 猪肉挥发胺 |
| 英文关键词: blueberry anthocyanin chitosan titanium dioxide color difference pork volatile amine |
| 基金项目:山西省高等学校科技创新计划创新平台项目(2022P022) |
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| 中文摘要: |
| 目的 开发一种具备较好气敏性和稳定性的壳聚糖/蓝莓花青素/二氧化钛新鲜度指示膜，用于快速、无损地检测肉类的新鲜度。方法 调整蓝莓花青素的添加比例，系统评估膜的气敏性、物理性能、抗氧化性及结构，验证其在肉类新鲜度监测中的应用效果。结果 花青素增强了膜的气敏性，在pH响应中，膜梯度颜色变化明显，挥发胺响应中总色差变化显著。2%BA提高了膜的柔韧性(断裂伸长率为15.6%)和强度(拉伸强度为44.27 MPa)，同时提升溶胀性(29.67%)与阻光性(4.30%)。微观分析证实，材料分子间作用稳定，二氧化钛提高了膜的结晶度与微观有序性。在猪肉新鲜度指示效果应用中，膜色差与挥发性盐基氮含量(R=0.971 29)呈显著正相关，可灵敏反映腐败进程。结论 壳聚糖/蓝莓花青素/二氧化钛膜兼具优异的稳定性、灵敏的pH/胺响应性和抗氧化能力，能够通过直观的颜色变化实时监测肉类的新鲜度，为智能包装材料开发提供了创新思路。 |
| 英文摘要: |
| The work aims to develop a chitosan/blueberry anthocyanin/titanium dioxide freshness indicator film with good gas sensitivity and stability for rapid and non-destructive detection of meat freshness. The addition ratio of blueberry anthocyanins was adjusted, and the gas sensitivity, physical properties, antioxidant properties and structure of the membrane were systematically evaluated to verify its application in meat freshness monitoring. The results showed that anthocyanins enhanced the gas sensitivity of the membranes, with significant changes in the colour of the membrane gradient in the pH response, and significant changes in the total colour difference in the volatile amine response. For 2% BA membranes, it improved their flexibility (elongation at break 15.6%) and strength (tensile strength 44.27 MPa), as well as solubility (29.67%) and light-blocking (4.30%). The microscopic analyses confirmed that the material intermolecular interactions were stabilized, and titanium dioxide improved the crystallinity and micro-ordering of the membrane. In the application of pork freshness indication effect, the membrane colour difference showed a significant positive correlation with volatile saline nitrogen content (R=0.971 29), which could sensitively reflect the spoilage process. The chitosan/blueberry anthocyanin/titanium dioxide membrane combines excellent stability, sensitive pH/amine responsiveness, and antioxidant capacity, and is capable of monitoring meat freshness in real time through intuitive colour changes, providing an innovative idea for the development of smart packaging materials. |
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