El Guerraf Abdelqader, Jadi Sana Ben, Ziani Imane, Dalli Mohammed, Sher Farooq, Bazzaoui Mohammed, Bazzaoui El Arbi
Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed First University, Oujda 60000, Morocco.
Laboratory of Materials and Environmental, Faculty of Sciences, Ibn Zohr University, 885 Agadir 80000, Morocco.
Ind Eng Chem Res. 2022 Aug 24;62(11):4540-4553. doi: 10.1021/acs.iecr.2c01327. eCollection 2023 Mar 22.
In recent decades, food-packaging markets have attracted researchers' interest in many ways because such industries can directly affect human health. In this framework, the present study emphasizes the interesting and smart properties provided by new nanocomposites based on conducting polymers (CPs), silver nanoparticles (AgNPs), and cellulose fibers (CFs) and their possible applications as active food packaging. Polyaniline and poly(3,4-ethylenedioxythiophene) containing AgNPs were elaborated on via a simple one-step chemical oxidative polymerization on CFs. Spectroscopic and microscopic characterization allowed a full discussion of the morphology and chemical structure of the nanocomposites and confirmed the successful polymerization of the monomer as well as the incorporation of AgNPs into the CP-based formulation. This study aims to demonstrate that it is possible to produce a highly efficient package with enhanced protective properties. Thus, the synthesized nanocomposites were tested as volatile organic compounds, sensors, and antibacterial and antioxidant agents. It is shown that the elaborated materials can, on the one hand, inhibit the development of biofilms and decrease the oxidation reaction rate of foodstuffs and, on the other hand, detect toxic gases generated by spoiled food. The presented method has unlocked massive opportunities for using such formulations as an interesting alternative for classical food containers. The smart and novel properties offered by the synthesized composites can be operated for future industrial applications to prevent any degradation of the packaged products by offering optimum protection and creating an atmosphere that can extend the shelf life of foodstuffs.
近几十年来，食品包装市场在许多方面吸引了研究人员的兴趣，因为这类行业会直接影响人类健康。在此框架下，本研究强调了基于导电聚合物（CPs）、银纳米颗粒（AgNPs）和纤维素纤维（CFs）的新型纳米复合材料所具有的有趣且智能的特性，以及它们作为活性食品包装的潜在应用。通过在CFs上进行简单的一步化学氧化聚合反应，制备了含有AgNPs的聚苯胺和聚（3,4-亚乙基二氧噻吩）。光谱和显微镜表征使我们能够全面讨论纳米复合材料的形态和化学结构，并证实了单体的成功聚合以及AgNPs被掺入基于CP的配方中。本研究旨在证明生产具有增强保护性能的高效包装是可行的。因此，对合成的纳米复合材料进行了挥发性有机化合物、传感器以及抗菌和抗氧化剂方面的测试。结果表明，所制备的材料一方面可以抑制生物膜的形成，降低食品的氧化反应速率，另一方面可以检测变质食品产生的有毒气体。所提出的方法为将此类配方用作传统食品容器的有趣替代品提供了大量机会。合成复合材料所具有的智能和新颖特性可用于未来的工业应用，通过提供最佳保护并营造一种能够延长食品保质期的氛围，防止包装产品发生任何降解。
