在以粮食不安全为特征的全球背景下,食品科学和包装技术研究人员和利益相关者必须确保安全和适应性食品的可用性,同时将环境影响降至最低。实现食品包装的可持续性需要多种方法,包括使用天然和可生物降解的材料,包括纤维素纤维。目前的研究旨在开发和表征和优化一种有效的生物复合食品包装/储存材料,专门为一种流行的埃塞俄比亚面包叫做injera,由一种叫做“Teff”的谷物制成(Eragrostistef)。拟议的生物复合食品储存和包装是通过掺入纤维增强材料来设计的,也就是假香蕉,也称为Enset光纤(EF),和ZnO纳米颗粒(ZnONP)进入聚乳酸(PLA)基质。使用中央复合材料设计(CCD)方法来评估增强Enset纤维(EF)在5%时的影响,15%,和25%和ZnONPs为0%,5%,10%的水平。对开发的功能性生物复合包装材料进行了测试和表征,包括机械强度,水活动,抗真菌活性,和迁移属性。结果表明,ZnONPs的夹杂物提高了拉伸强度,迁移,和阻隔性能,而增强纤维增强了机械性能和迁移性能,但降低了阻隔性能。增强纤维(EF)和ZnONP的联合作用导致机械强度和迁移性能的进一步改善,尽管没有观察到对屏障性能的相互作用。最优解,由6.7%的ZnO纳米颗粒和6%的Enset纤维组成,产生了高效的包装和储存原型,延长了八天以上的食品新鲜度。
In a global context marked by food insecurity, it is essential for food science and packaging technology researchers and stakeholders to ensure the availability of safe and adaptable foods with minimal environmental impact. Achieving sustainability in food packaging requires multiple approaches, including the use of natural and biodegradable materials including cellulosic fibers. The current study aimed to develop and characterize and optimized an effective biocomposite food packaging/storing materials, specifically for a popular Ethiopian flatbread called injera, made from a grain called \'Teff\' (Eragrostis tef). The proposed biocomposite food storage and packaging was designed by incorporating fiber-reinforcing materials, namely false banana, also called Enset fibers (EFs), and ZnO nanoparticles (ZnO NPs) into a polylactic acid (PLA) matrix. A central composite design (CCD) approach was used to evaluate the impact of the reinforcing Enset fibers (EFs) at 5 %, 15 %, and 25 % and ZnO NPs at 0 %, 5 %, and 10 % levels. The developed functional biocomposite packaging materials were tested and characterized for various properties, including mechanical strength, water activity, antifungal activity, and migration properties. The results showed that the inclusion of ZnO NPs improved the tensile strength, migration, and barrier properties, while the reinforcing fiber enhanced mechanical and migration properties but reduced barrier properties. The combined effect of the reinforcement fibers (EFs) and ZnO NPs led to further improvements in the mechanical strength and migration properties, though no interaction effect was observed on barrier properties. The optimal solution, consisting of 6.7 % ZnO nanoparticles and 6 % Enset fibers, resulted in a highly effective packaging and storage prototype that extended the freshness of the food for over eight days.