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首页> 外文期刊>Journal of Polymers and the Environment >Bioactive Nanocomposite Film Based on Cassava Starch/Polyvinyl Alcohol Containing Green Synthesized Silver Nanoparticles
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Bioactive Nanocomposite Film Based on Cassava Starch/Polyvinyl Alcohol Containing Green Synthesized Silver Nanoparticles

机译：基于木薯淀粉/聚乙烯醇的生物活性纳米复合膜含有绿色合成银纳米颗粒

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摘要

The bioactive packaging polyvinyl alcohol PVA/starch (PSt) films were prepared by incorporating green synthesized silver nanoparticles (AgNPs). The effect of oregano essential oil (OEO) content on the green synthesis of AgNPs in PSt film was studied. The PSt-AgNPs containing 5 wt% OEO showed minimum inhibitory concentration againstEscherichia coli(E. coli) andStaphylococcus aureus(S. aureus). A synergistic effect on antibacterial activity with PSt incorporated AgNPs and OEO was achieved. The use of OEO content in this work was the lowest when compared to other bioactive containing OEO. The improvements of water resistance were also observed. The tensile strength and tensile modulus of film increased 80.9% and 88.6%, respectively. The releases of silver ion of PSt-AgNPs containing 5 wt% OEO in different foods were 9.31% for deionized water, 7.48% for ethanol and 24.51% for acetic acid. These values were lower than the requirements of European Standard EN 1186-1:2002. The incorporation of green synthesized AgNPs using OEO and PSt thus improved the bioactive nanocomposite film performance for food packaging applications.
机译：通过掺入绿色合成的银纳米颗粒（AgNP）来制备生物活性包装聚乙烯醇PVA /淀粉（PST）膜。研究了牛至精油（OEO）含量对PST薄膜中AgNP绿色合成的影响。含有5wt％OEO的PST-agnps显示出最低抑制浓度的抑制浓度，抵押菌（例如大肠杆菌）和浮躁神经糖尿病患者。实现了对PST掺入agnps和OEO抗菌活性的协同作用。与其他含生物活性的OEO相比，在这项工作中使用OEO内容是最低的。还观察到耐水性的改善。薄膜拉伸强度和拉伸模量分别增加了80.9％和88.6％。去离子水中的5wt％OEO的PST-agnps的银离子的释放物为去离子水为9.31％，乙醇的7.48％，乙酸的24.51％。这些值低于欧洲标准EN 1186-1：2002的要求。因此，使用OEO和PST掺入绿色合成的AgNP，从而改善了用于食品包装应用的生物活性纳米复合膜性能。

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