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首页> 外文期刊>Journal of Applied Polymer Science >UV-shieldingantimicrobial zein films blended with essential oils for active food packaging
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UV-shieldingantimicrobial zein films blended with essential oils for active food packaging

机译：UV屏蔽抗菌玉米蛋白膜与精油混合，用于活性食品包装

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摘要

A comprehensive study on zein film blended with glycerol and essential oils (EOs) is presented in this work. In particular, ultra violet (UV) shielding property and antimicrobial efficacy of developed active zein films (ZF) are tested. The fabricated films show zero transmittance in the UV region as compare to commercial poly-film which shows 40%-80% of UV transmittance. Results show that films are effective against spoilage microorganisms. The incorporation of EOs in ZF significantly reduces the growth of microbes over fruit samples since day 3. Physical interactions existing between EOs along with glycerol and zein provide considerable barrier properties. The glass transition temperature of the film comes out to be 47.7 degrees C having the tensile strength of 1.21 +/- 0.05 MPa. TGA curves show major weight loss in the range of 220-375 degrees C. In conclusion, edible active ZF can be used as healthy packages over food and drug to increase their shelf life.
机译：本文对玉米醇溶蛋白膜与甘油和香精油（EOs）的共混进行了综合研究。特别是，测试了开发的活性玉米醇溶蛋白膜（ZF）的紫外线（UV）屏蔽性能和抗菌效果。所制备的薄膜在紫外区域的透射率为零，相比之下，市售聚酯薄膜的紫外透射率为40%-80%。结果表明，涂膜对腐败微生物有很好的抑制作用。自第3天起，在ZF中加入EOs可显著减少水果样品上微生物的生长。EOs与甘油和玉米醇溶蛋白之间存在的物理相互作用提供了相当大的屏障特性。薄膜的玻璃化转变温度为47.7℃，拉伸强度为1.21+/-0.05 MPa。TGA曲线显示，在220-375摄氏度范围内，主要的体重减轻。总之，食用活性ZF可以作为健康包装，而不是食品和药物，以延长其保质期。

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