CuO/CaMoO_(4)复合抗菌剂的制备、表征及其在黄瓜贮藏中的应用  

Preparation,Characterization and Application of Compound CuO/CaMoO_(4)Antibacterial Agent in Cucumber Storage

作　　者：张慧敏 ZHANG Huimin(Department of Food and Medicine,Weihai Ocean Vocational College,Weihai 264300,China)

机构地区：[1]威海海洋职业学院食品与药品系,山东威海264300

出　　处：《现代食品科技》2024年第5期142-149,共8页Modern Food Science and Technology

基　　金：中央引导地方科技发展专项(YDZX2021127);山东省高等学校青创人才引育计划-食品加工技术技能创新团队建设项目(2019.133)。

摘　　要：该文以钼酸铵、鸡蛋壳、十六烷基三甲基溴化铵为原材料,通过改变煅烧温度制备了性能更为优良的CaMoO_(4),并以钼酸钙、硫酸铜、硼氢化钠为原料,制备了CuO/CaMoO_(4)复合抗菌剂,同时研究了CuO/CaMoO_(4)复合抗菌剂的用量、培养时间、铜含量对抗菌活性的影响,以及CuO/CaMoO_(4)复合抗菌剂在光反应和暗反应条件下对大肠杆菌(Escherichia coli,E.coli)的抑菌效果。实验结果表明,在650℃煅烧下得到的CuO/CaMoO_(4)复合抗菌剂的抗菌性能最好,铜含量为1.20%时,光照条件下和黑暗条件下的抑菌率均能达到100%。含有CuO/CaMoO_(4)复合抗菌剂的保鲜膜抑菌试验表明,CuO/CaMoO_(4)复合抗菌剂可以有效抑制食品表面的大肠杆菌,食品经贮藏4 d后,抑菌率仍为100%。CuO/CaMoO_(4)复合抗菌剂生物相容性好。CuO/CaMoO_(4)复合抗菌剂能快速高效抑制大肠杆菌,保障食品安全,为食品贮存行业提供了新的思路。In this paper,ammonium molybdate,eggshell and cetyltrimethyl ammonium bromide were used as raw materials to prepare CaMoO_(4)with improved performance by adjusting the calcination temperature.Additionally,a CuO/CaMoO_(4)composite antibacterial agent was synthesized using calcium molybdate,copper sulfate,and sodium borohydride as raw materials.The effects of CuO/CaMoO_(4)antibacterial dosage,culture time,and copper content on antibacterial activity and the antibacterial effect of CuO/CaMoO_(4)on Escherichia coli(E.coli)were studied under light and dark reaction conditions.The CuO/CaMoO_(4)composite antibacterial agent synthesized at 650℃exhibited the best antibacterial efficacy.Moreover,when the copper content was 1.20%,the antibacterial rate could reach 100%under light and dark conditions.Bacteriostatic testing of plastic wrapping material containing CuO/CaMoO_(4)compound antibacterial agent showed that the agent could effectively inhibit E.coli on food surfaces,and the antibacterial rate remained at 100%even after four days of storage.Furthermore,the CuO/CaMoO_(4)antibacterial compound displayed excellent biocompatibility.Overall,the compound CuO/CaMoO_(4)antibacterial agent demonstrated rapid and efficient inhibition of E.coli,thereby ensuring food safety and offering novel insights for food storage practices.

关 键 词：CuO/CaMoO_(4) 食品贮藏 抗菌性能 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]