γ环糊精金属有机骨架包埋姜黄素指示标签用于青虾的新鲜度监测OA
Indicators of γ-cyclodextrin metal-organic frameworks encapsulated with curcumin for monitoring freshness of freshwater shrimp
为了改善姜黄素(curcumin,Cur)指示标签的稳定性,以羧甲基纤维素钠和聚乙烯醇为成膜基材,γ环糊精金属有机骨架(γ-cyclodextrin metal-organic frameworks,γ-CD-MOF)包埋Cur作为指示剂,制备不同浓度的智能指示标签.对智能指示标签的形貌、热稳定性以及力学性能等进行表征和分析.结果表明,当γ-CD-MOF/Cur添加量为4％时,智能指示标签的表面相对均匀,热稳定性良好,拉伸强度为19.12 MPa,断裂伸长率为26.95％.在青虾变质(挥发性盐基氮由1.95 mg/100 g上升至29.3 mg/100 g)监测中,智能标签由黄色变为红色,响应效果良好.该研究为青虾的实时新鲜度指示提供参考依据.
To improve the stability of curcumin(Cur)indicator labels,sodium carboxymethyl cellulose and polyvinyl alcohol were used-as film forming substrates and γ-cyclodextrin metal-organic frameworks(γ-CD-MOF)encapsulated curcumin was used as an indicator to prepare smart indicator labels with different concentrations.The morphology,thermal stability and mechanical properties of smart labels were characterized and analyzed.Results showed that when the addition amount of γ-CD-MOF/Cur was 4％,the surface of the intelligent indicator label was relatively uniform,the thermal stability was good,the tensile strength was 19.12 MPa,and the elongation at break was 26.95％.In the monitoring of freshwater shrimp deterioration TVB-N increased from 1.95 mg/100 g to 29.3 mg/100 g,the smart label changed from yellow to red,and the response effect was good.This study provides a reference for the real-time freshness indicator of fresh-water shrimp.
张磊;王立娟;王桂英
东北林业大学家居与艺术设计学院,黑龙江哈尔滨,150040东北林业大学家居与艺术设计学院,黑龙江哈尔滨,150040东北林业大学家居与艺术设计学院,黑龙江哈尔滨,150040
环糊精金属有机骨架聚乙烯醇羧甲基纤维素钠姜黄素智能标签
cyclodextrin metal-organic frameworkspoly vinyl alcoholsodium carboxymethyl cellulosecurcuminsmart indicator
《食品与发酵工业》 2026 (7)
295-301,7
黑龙江省自然科学基金项目(LH2024C043)
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