Bio-based active food packaging containing natural antioxidants has gaining great attention these days. The food industry resulted in huge amount of waste rich in natural antioxidant and utilization of these wastes is very important from environmental viewpoint. In this study, apple peel was used to produce apple peel nanoparticles and later, chitosan (CS) and gelatin (G) based novel functional films were successfully fabricated. The prepared films were characterized for their structure, potential interaction and thermal stability. In addition, tensile strength and physical properties were also determined. Scanning electron microscopy (SEM) results revealed that higher concentration of apple peel ethanolic extract (APEE) triggered the sintering of nanoparticles within the films. The data of Fourier transform-infrared spectroscopy (FT-IR) and thermo-gravimetric analysis (TGA) revealed that the presence of apple peel related compounds in the films resulted decrease in availability of hydroxyl groups within the polymer matrix. The addition of APEE into CS/G significantly enhanced the physical properties of the film by increasing its thickness while solubility, swelling ratio, and water vapor permeability were decreased. It could be inferred that CS/G-APEE films exhibited good antioxidant properties, indicating that it could be developed as a bio-nanocomposite food packaging material for the food industry.

如今，包含天然抗氧化剂的生物基活性食品包装受到了广泛关注。食品工业导致大量富含天然抗氧化剂的废物，从环境角度来看，这些废物的利用非常重要。在这项研究中，苹果皮用于生产苹果皮纳米颗粒，随后，成功制备了基于壳聚糖（CS）和明胶（G）的新型功能膜。制备的薄膜的结构，电位相互作用和热稳定性均经过表征。另外，还测定了拉伸强度和物理性质。扫描电子显微镜（SEM）结果表明，较高浓度的苹果皮乙醇提取物（APEE）触发了薄膜内纳米颗粒的烧结。傅立叶变换红外光谱（FT-IR）和热重分析（TGA）的数据表明，膜中苹果皮相关化合物的存在导致聚合物基体内羟基的可用性降低。在CS / G中添加APEE可通过增加膜的厚度来显着提高膜的物理性能，同时降低溶解度，溶胀率和水蒸气透过率。可以推断CS / G-APEE膜具有良好的抗氧化性能，表明它可以作为食品工业用的生物纳米复合食品包装材料而开发。在CS / G中添加APEE可通过增加膜的厚度来显着提高膜的物理性能，同时降低溶解度，溶胀率和水蒸气透过率。可以推断CS / G-APEE膜具有良好的抗氧化性能，表明它可以作为食品工业用的生物纳米复合食品包装材料而开发。在CS / G中添加APEE可通过增加膜的厚度来显着提高膜的物理性能，同时降低溶解度，溶胀率和水蒸气透过率。可以推断CS / G-APEE膜具有良好的抗氧化性能，表明它可以作为食品工业用的生物纳米复合食品包装材料而开发。