Concerns about environmental problems have led to the development of biodegradable packaging. Food wastes as a byproduct could be a good source for biopolymers. This study aimed to describe the physical and antimicrobial features of nano biocomposite films based on orange waste powder (OWP) with different concentrations of nettle essential oil (NEO) (1.5 and 3%) as an antibacterial agent and cellulose nanofiber (CNF) (3 and 6%) as a structural reinforcement. Thus, Field emission scanning electron microscopy (FE-SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and differential scanning calorimetry analysis (DSC) were performed. Further, tensile strength, elongation at break, water vapor permeability, and antimicrobial properties were investigated. As a result, the addition of CNF improved the tensile strength and water barrier properties of the samples. Compared to the control film, adding NEO (3%) decreased the tensile strength but increased water vapor permeability and melting temperature. Moreover, the OWP-based film samples had an antimicrobial effect against five foodborne pathogens; this effect was increased considerably by enhancing the NEO concentration. In this regard, the maximum and minimum susceptibility was related to the Staphylococcus aureus and Salmonella enterica, respectively. In conclusion, orange waste could be used to produce an active film with improved physicomechanical and antibacterial properties by incorporating CNF and NEO.

对环境问题的关注导致了可生物降解包装的发展。作为副产品的食物垃圾可能是生物聚合物的良好来源。本研究旨在描述基于橙色废粉 (OWP)、不同浓度的荨麻精油 (NEO)（1.5% 和 3%）作为抗菌剂和纤维素纳米纤维 (CNF) 的纳米生物复合膜的物理和抗菌特性（3和 6%) 作为结构加固。因此，进行了场发射扫描电子显微镜 (FE-SEM)、傅里叶变换红外光谱 (FTIR)、X 射线衍射 (XRD) 和差示扫描量热分析 (DSC)。此外，还研究了拉伸强度、断裂伸长率、水蒸气渗透性和抗菌性能。因此，CNF的加入提高了样品的拉伸强度和防水性能。与对照薄膜相比，添加 NEO (3%) 降低了拉伸强度，但增加了水蒸气渗透率和熔化温度。此外，基于 OWP 的薄膜样品对五种食源性病原体具有抗菌作用；通过提高近地天体浓度，这种影响大大增加。在这方面，最大和最小敏感性与分别为金黄色葡萄球菌和肠沙门氏菌。总之，橙色废料可以通过加入 CNF 和 NEO 来生产具有改善的物理机械和抗菌性能的活性薄膜。