Characterization and long term antimicrobial activity of the nisin anchored cellulose films
Characterization and long term antimicrobial activity of the nisin anchored cellulose films
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乳链菌肽锚定纤维素膜的表征和长期抗菌活性
DOI：
10.1016/j.ijbiomac.2018.01.194
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发表时间：
2018-07-01
影响因子：
8.2
通讯作者：
Wang, JianGuo
中科院分区：
文献类型：
--
作者：
Wu, Hao;Teng, Chao;Wang, JianGuo
为了获得一种安全、可生物降解的食品包装材料，本研究开发了一种简便、绿色的方法，通过简单的Schiff碱反应将乳酸链球菌素锚定在氧化纤维素上，用于长期的抗菌活性食品包装。据我们所知，这是此类包装的首次报告。通过乳酸链球菌素的氨基与氧化纤维素膜的醛基接枝反应，制备了乳酸链球菌素锚定纤维素膜（NC），并采用傅立叶变换红外光谱、扫描电镜和热重分析对其结构进行了表征。NC膜具有通过300 nm至800 nm的90%以上的透射率的突出的透明性质;同时，对氧气的阻隔性质保持优异。NCs膜的热稳定性保持优异，并且比原始纤维素膜更容易降解。NCs膜对酸土脂环酸芽孢杆菌DSM 3922 T具有良好的长期抑菌活性，因此显示出作为食品包装材料的良好潜力。所获得的结果是有前途的，并证实了发展的纳米纤维膜作为绿色材料的食品包装。(C)2018 Elsevier B. V.版权所有。
To obtain a safe and biodegradable material for food packaging, this study developed a facile and green process of anchoring nisin onto oxidized cellulose through a simple Schiff base reaction for long-term antimicrobial active food packaging. To the best of our knowledge, this is the first report of such a packaging. The grafting reaction between the amino groups of nisin and the aldehyde groups of oxidized cellulose films was successfully established to obtained a nisin anchored cellulose films (NC) membrane; the structure was characterized with Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The NCs membrane had an outstanding transparent property of above 90% transmittance through 300 nm to 800 nm; while, the barrier properties against oxygen remain excellent. The thermal stability of the NCs membrane remained excellent and enabled an easier degradation than the original cellulose membrane. The NCs membrane displayed good antimicrobial activity against Alicyclobacillus acidoterrestris DSM 3922T in a long-term way, thus demonstrating good potential as food packaging material. The obtained results are promising and confirm the development of NCs membranes as green materials for food packaging. (C) 2018 Elsevier B.V. All rights reserved.