猪肉可视化新鲜度智能指示薄膜研究

王玥 樊柳荫

引用本文: 王玥, 樊柳荫. 猪肉可视化新鲜度智能指示薄膜研究[J]. 分析化学, 2023, 51(1): 139-145. doi: 10.19756/j.issn.0253-3820.221161 shu
Citation:  WANG Yue,  FAN Liu-Yin. Intelligent Indicator Film for Visual Meat Freshness Monitoring[J]. Chinese Journal of Analytical Chemistry, 2023, 51(1): 139-145. doi: 10.19756/j.issn.0253-3820.221161 shu

猪肉可视化新鲜度智能指示薄膜研究

    通讯作者: 樊柳荫,E-mail:lyfan@sjtu.edu.cn
  • 基金项目:

    国家自然科学基金项目(No.22074091)资助。

摘要: 基于静电纺丝技术,利用3种不同的pH敏感型指示剂分别与聚乙烯醇(PVA)共混,制备了3种可视化检测猪肉新鲜度的智能指示薄膜。采用扫描电子显微镜(SEM)对薄膜的微观结构进行了分析,测试了3种不同指示薄膜对氨气(NH3)及猪肉贮存过程中不同时段的颜色响应以及相应的色差值(△E)变化;采用自动凯氏定氮仪测定了不同贮存时间内猪肉的挥发性盐基氮(TVB-N)含量。结果表明,PVA/指示剂智能指示薄膜有较高的孔隙率与比表面积,对NH3的响应性良好,在猪肉贮藏过程中颜色变化明显,易通过肉眼观察。3种指示薄膜在猪肉不同贮存时间内的△E值与TVB-N含量均呈高度的相关性,可灵敏、准确地检测猪肉新鲜度变化,在肉类新鲜度的方便快捷、实时监测中具有良好的应用潜力。

English


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  • 收稿日期:  2022-04-02
  • 修回日期:  2022-07-07
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