Both biodegradable UV-blocking and antimicrobial films are extremely demanded, especially for food packaging to meet the increasing sustainable requirement for the human health and the environment. Thus, the objective of this research was to fabricate antibiofilms based biodegradable Poly(butylene adipate-co-terephthalate)/organoclay (PBAT/OC) bionanocomposites incorporating with different proportions of cumin essential oil (CEO) as a toxicity-free product without requiring ZnO, TiO₂, Ag-NPs or other nanoparticles. The composition of CEO was characterized by GC-MS. PBAT/OC bionanocomposites with variable proportions of CEO were prepared by solvent casting approach. The synergistic effect of CEO on the morphology, UV-shielding, and antibacterial/antioxidant activities was studied. The results revealed that the dispersion of clay layers in the matrix was affected when the CEO content was increased. The incorporated natural CEO into PBAT/OC nanocomposite was enhanced the UV-shielding properties (i.e. 100% blocking for UV-B and nearly up 95% for UV-A), and antimicrobial/antioxidant activities, especially at high oil concentration. Whereas for mechanical properties, the findings showed inferior tensile and modulus values, because of plasticizing CEO effect. The data in this research provide very promising formulations for fabricating sustainable PBAT-based antimicrobial and UV-protecting films for perspective applications in light-sensitive packaging such as drugs, food products or in agriculture mulch films.

极其需要可生物降解的防紫外线膜和抗菌膜，特别是对于食品包装，以满足对人类健康和环境日益增长的可持续需求。因此，本研究的目的是制造基于抗生物膜的可生物降解的聚己二酸丁二酯/对苯二甲酸对苯二甲酸/有机粘土（PBAT / OC）生物纳米复合材料，其中包含不同比例的孜然精油（CEO），而无需使用ZnO。 TiO ₂，Ag-NP或其他纳米粒子。CEO的组成由GC-MS表征。通过溶剂浇铸法制备了具有不同CEO比例的PBAT / OC纳米复合材料。研究了CEO对形态，紫外线屏蔽和抗菌/抗氧化活性的协同作用。结果显示，当CEO含量增加时，粘土层在基质中的分散受到影响。结合到PBAT / OC纳米复合材料中的天然CEO可以增强UV屏蔽性能（例如，对UV-B具有100％的封闭性，对于UV-A具有近95％的封闭性）以及抗微生物/抗氧化活性，尤其是在高油浓度下。对于机械性能，由于增塑的CEO效应，发现显示出较低的拉伸和模量值。