An enzyme-like catalytic based food antibacterial activity packaging method
CN122911014APending Publication Date: 2026-10-16SICHUAN UNIV
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Patent Information
- Application Number
- CN202611079948.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-21
- Publication Date
- 2026-10-16
AI Technical Summary
Technical Problem
然而，由纳米酶介导的类酶催化反应往往与食品常规的贮藏与保鲜环境不适配，这极大限制了纳米酶在实际食品保鲜体系中的直接应用
Benefits of technology
本发明选用具有均一分散活性位点、近乎100%原子利用率、良好化学稳定性并表现出高效类氧化酶（OXD）活性的FeSAzyme作为抗菌活性成分，具有良好的成膜性、生物相容性与抗菌活性的CS作为膜基质，构建了一种基于类酶催化的食品抗菌活性包装膜。在无需任何外界条件参与的情况下，即可同时通过FeSAzyme类酶催化杀菌与CS天然抗菌的双重机制，对食品贮藏与保鲜过程中的食源性致病菌进行协同抑制。在包装材料层面，CS作为一种天然多糖，充分溶解可形成高黏性的胶体溶液，经干燥后所形成的CS膜不仅保留了传统包装材料的阻隔性能，而且天然无毒、绿色环保并具有一定抑菌特性，是替代传统塑料包装材料、构建抗菌活性包装体系的重要候选材料。在抗菌活性成分层面，FeSAzyme作为一种单原子纳米酶，表现出极高的类OXD活性，可使微生物细胞内不断产生ROS，破坏微生物的细胞膜、蛋白质和DNA，从而抑制微生物的生长与繁殖。与化学防腐剂和天然抗菌剂相比，FeSAzyme具有更强的环境耐受性、更高的稳定性、更低的制备成本，且引起细菌耐药性的可能性极低。
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Abstract
The application discloses a food antibacterial active packaging method based on enzyme-like catalysis, and belongs to the field of food preservation. The food antibacterial active packaging method based on enzyme-like catalysis takes an oxidase nanoenzyme as an antibacterial active component and takes chitosan as a film matrix. Through the double mechanisms of nanoenzyme enzyme-like catalysis sterilization and chitosan natural antibiosis, the food source pathogenic bacteria in the food storage and preservation process are cooperatively inhibited, so that the shelf life of food is prolonged and the quality and safety of food are ensured.
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