Plasma-treated poly(ethylene oxide) nanofibers containing tea tree oil/beta-cyclodextrin inclusion complex for antibacterial packaging
Plasma-treated poly(ethylene oxide) nanofibers containing tea tree oil/beta-cyclodextrin inclusion complex for antibacterial packaging
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DOI：
10.1016/j.carbpol.2017.10.011
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发表时间：
2018-01-01
影响因子：
11.2
通讯作者：
Lin, Lin
中科院分区：
文献类型：
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作者：
Cui, Haiying;Bai, Mei;Lin, Lin
研究了低温氮等离子体对含抗菌剂的聚氧化乙烯（PEO）纳米纤维抗菌性能的影响。以β-环糊精（β-CD）和茶树油（TTO）为主客体，制备水溶性包合物。在60 ℃时，TTO包合物的包封率可达73.23%。采用静电纺丝法将包合物包封到聚氧化乙烯（PEO）基体中，作为抗菌剂。经等离子体处理后，抗菌剂从PEO纳米纤维中的释放效率得到提高。结果表明，PEO纳米纤维的抗菌活性得到了相应的增强。经等离子体处理后的抗菌膜对大肠杆菌O 157：H7的抑菌活性最高，在4 ℃和12 ℃下对牛肉的抑菌率均达到99.99%。经等离子体处理的TTO/beta-CD-IC包合物PEO膜可延长牛肉的货架期，在活性食品包装中具有潜在的应用价值。
This work describes the effect of cold nitrogen plasma to enhance the antibacterial activity of poly(ethylene oxide) (PEO) nanofibers containing antibacterial agent. Beta-cyclodextrin (beta-CD) and tea tree oil (TTO) were used as a host-guest to form water-soluble inclusion complex. The encapsulation efficiency of TTO in inclusion complex could reach 73.23% at 60 degrees C. As antibacterial agent, the inclusion complex was encapsulated into PEO matrix by electrospun. After plasma treatment, the release efficiency of antibacterial agent from PEO nanofibers was improved. As a result, the antibacterial activity of PEO nanofibers was enhanced accordingly. The plasma-treated nanofiber membranes achieved the highest antibacterial activity against Escherichia coli O157:H7, which was tested on the beef for 7 d, with inhibition efficiently of 99.99% whether at 4 degrees C or 12 degrees C. The plasma-treated PEO nanofiber membranes containing TTO/beta-CD inclusion complex (TTO/beta-CD-IC) can prolong the shelf-life of beef, suggesting it has potential application in active food packaging.