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Quality Control of Nano-food Packing Material for Grapes ( Vitis vinifera) Based on ZnO and Polylactic Acid (PLA) biofilm
Arabian Journal for Science and Engineering ( IF 2.6 ) Pub Date : 2021-02-02 , DOI: 10.1007/s13369-021-05361-9
Madiha Batool , Amin Abid , Shazia Khurshid , Tabassum Bashir , Muhammad Akhtar Ismail , Muhammad Aamir Razaq , Muhammad jamil

Nano-food packaging, the emergence of latest technology based on nanomaterials, created enormous trust to the synthesis of novel packaging incorporated by zinc oxide nanoparticles (ZnO-NPs) in polylactic acid (PLA) polymer. The morphology and structure of biogenically fabricated ZnO-NPs by aloe barbadensis leaves extract were analyzed by X-ray diffraction, scanning electron microscopy and Fourier transforms infrared spectroscopy. The fabricated ZnO-NPs were hexagonal in shape and 36.5 nm in size. The zinc oxide nanoparticles at concentration of 0.4% (w/w) and 4% (w/w) are incorporated in polylactic acid (PLA) by solution casting method. Loading of zinc oxide nanoparticle in PLA improved stability, film thickness and elongation. The Vitis vinifera fruit packed in the biofilm was observed for appearance, taste and freshness during ambient storage. ZnO-NPs/PLA packed fruit samples retained their original taste and freshness for 15 days in comparison with the reference samples packed in ZnO-NPs/ PLA (4%) at 400C. The biofilm did not affect the fruit Vitis vinifera quality attributes. The decay content, color change, browning index, gases and metal accumulation observations for Vitis vinifera fruit packed in ZnO-NPs/ PLA (4%) exhibited marvellous results. There were no significant differences between the materials tested (p > 0.05). Intercalation of ZnO-NPs was involved in the form of fillers in PLA by solvent casting method for shelf life augmentation of the selected delicate fruit, Vitis vinifera.



中文翻译:

基于ZnO和聚乳酸(PLA)生物膜的葡萄(Vitis vinifera)纳米食品包装材料的质量控制。

纳米食品包装是基于纳米材料的最新技术的出现,它对由氧化锌纳米颗粒(ZnO-NP)掺入聚乳酸(PLA)聚合物中的新型包装的合成赢得了极大的信任。用X射线衍射,扫描电子显微镜和傅里叶变换红外光谱分析了芦荟叶提取物生物制备的ZnO-NPs的形貌和结构。制成的ZnO-NP形状为六边形,尺寸为36.5 nm。通过溶液流延法将浓度为0.4%(w / w)和4%(w / w)的氧化锌纳米颗粒掺入聚乳酸(PLA)中。在PLA中负载氧化锌纳米粒子改善了稳定性,膜厚度和伸长率。该葡萄观察包装在生物膜中的水果的外观,味道和新鲜度。与在40 0 C下装在ZnO-NPs / PLA(4%)中的参考样品相比,用ZnO-NPs / PLA包装的水果样品保留了15天的原始味道和新鲜度。生物膜不会影响果实的葡萄品质。 。装在ZnO-NPs / PLA(4%)中的葡萄果实的腐烂含量,颜色变化,褐变指数,气体和金属累积观察结果都很棒。所测试的材料之间没有显着差异(p > 0.05)。ZnO-NPs的插层通过溶剂浇铸法以填充剂的形式参与到PLA中,以延长所选精致水果Vitis vinifera的保质期。

更新日期:2021-02-02
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