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首页> 外文期刊>Journal of Polymers and the Environment >Preparation of Active Nanocomposite Film Consisting of Sodium Caseinate, ZnO Nanoparticles and Rosemary Essential Oil for Food Packaging Applications
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Preparation of Active Nanocomposite Film Consisting of Sodium Caseinate, ZnO Nanoparticles and Rosemary Essential Oil for Food Packaging Applications

机译：制备由酪蛋白酸钠，ZnO纳米粒子和迷迭香精油组成的活性纳米复合膜，用于食品包装应用

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摘要

Active films based on sodium caseinate (SC) were fabricated via the casting method; these films were reinforced with zinc oxide nanoparticles (ZnO NPs) and rosemary essential oil (REO). The films' optical, mechanical, and barrier and antimicrobial properties were evaluated. Further characterization was done using SEM, XRD, and FTIR spectroscopy. The results disclosed that the incorporation of ZnO NPs and REO into the SC matrix significantly improved the mechanical and barrier properties as well as moisture resistance of the SC film. The simultaneous incorporation of ZnO NPs and REO considerably reduced the water vapor permeability (WVP) of the films but increased their flexibility and strength. The microscopic and spectroscopic characterization revealed that the additives were highly compatible with the SC film matrix given the formation of uniform and homogeneous composite films. The nanocomposite films also exhibited noteworthy antimicrobial activity against the tested bacteria. In summary, this type of biopolymer-based active film can be considered as a promising material for food packaging applications.
机译：基于酪乳酸钠（SC）的活性膜通过铸造方法制造;用氧化锌纳米粒子（ZnO NPS）和迷迭香精油（REO）加固这些薄膜。评估薄膜的光学，机械和屏障和抗微生物性质。使用SEM，XRD和FTIR光谱进行进一步表征。结果公开了ZnO NPS和REO进入SC基质的掺入显着改善了SC膜的机械和屏障性能以及耐湿性。同时掺入ZnO NP和REO显着降低了薄膜的水蒸气渗透率（WVP），但增加了它们的柔韧性和强度。微观和光谱表征显示，鉴于形成均匀和均匀的复合膜，添加剂与SC膜基质高度相容。纳米复合薄膜还表现出对测试细菌的值得注意的抗微生物活性。总之，这种类型的基于生物聚合物的活性膜可以被认为是用于食品包装应用的有希望的材料。

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