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Fabrication and characterization of an active bionanocomposite film based on basil seed mucilage and ZnO nanoparticles
Journal of Food Measurement and Characterization ( IF 3.4 ) Pub Date : 2020-08-10 , DOI: 10.1007/s11694-020-00588-w
Sahar Kheirkhah foghara , Sara Jafarian , Shahin Zomorodi , Asghar Khosrowshahi asl , Leila Roozbeh Nasiraei

In this study, active nanofilms were developed using basil seed mucilage (BSM) containing zinc oxide nanoparticles (ZnO-NPs), according to casting method. Different amount of ZnO-NPs at the range of 0% (control), 0.1, 0.25, and 0.5% were incorporated into BSM film, then the physical, permeability, mechanical, thermal, and antimicrobial properties, as well as color index of fabricated films were examined. The results showed that moisture content, water absorption, water solubility, water vapor permeability (WVP), melting temperature (Tm), glass transition temperature (Tg) decreased with increasing the amount of ZnO, while the melting enthalpy of films increased (P < 0.05). The addition of ZnO-NPs up to 0.25% resulted in significant increase in the ultimate tensile strength, light (L*) and white indexes. Additionally, the basil seed mucilage film did not show antibacterial performance, while added of ZnO-NPs to the film, caused an increased trend in the antibacterial activity of films. The fabricated nanofilms prevented the growth of Listeria monocytogenes, Escherichia coli, Staphylococcus aureus, and Salmonella typhimurium (P < 0.05). All in all, the developed nanobiocomposite film using BSM containing 0.25% ZnO-NPs could be used as biodegradable and antibacterial film for food active packing to increase the shelf life of food.



中文翻译:

基于罗勒种子黏液和ZnO纳米粒子的活性纳米复合复合膜的制备与表征

在这项研究中,根据流延方法,使用包含氧化锌纳米颗粒(ZnO-NPs)的罗勒种子粘液(BSM)开发了活性纳米膜。在BSM膜中掺入0%(对照),0.1%,0.25%和0.5%范围内的不同数量的ZnO-NP,然后制备的物理,渗透性,机械,热和抗菌性能以及颜色指数电影被检查了。结果表明,水分,吸水率,水溶性,水蒸气透过率(WVP),熔融温度(T m),玻璃化转变温度(T g)随ZnO含量的增加而降低,而薄膜的熔融焓增加(P <0.05)。添加高达0.25%的ZnO-NPs可以显着提高极限抗拉强度,光(L *)和白指数。此外,罗勒种子粘液膜没有显示抗菌性能,而在膜中添加ZnO-NPs导致膜的抗菌活性增加。制备的纳米膜阻止了单核细胞增生李斯特菌大肠杆菌金黄色葡萄球菌的生长。和鼠伤寒沙门氏菌(P <0.05)。总而言之,使用含有0.25%ZnO-NPs的BSM开发的纳米生物复合膜可以用作食品活性包装的生物降解和抗菌膜,以延长食品的保质期。

更新日期:2020-08-11
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