Waste fish scale for the preparation of bio-nanocomposite film with novel properties

Environmental Technology and Innovation Pub Date : 2023-11-01 DOI:10.1016/j.eti.2023.103386

S Shalma, Dibyajyoti Haldar, Gopinath Halder, Anil Kumar Patel, Reeta Rani Singhania, Ashok Pandey

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Abstract

The aim of this work was to study utilization of waste fish scales to develop a bio-nanocomposite films with corn starch, embedded with ZnO nanoparticles and turmeric as an alternative to synthetic plastics films to pack the food. Four different types of bio-nanocomposite films were prepared using varying amounts of fish scale powder and corn starch. The films were examined for their physical and chemical characteristics, including texture, colour, solubility in hot water, tensile strength, organic content, and shape. The films were characterized by FTIR, UV–Vis spectrophotometry and SEM. The developed bio-nanocomposite films demonstrated enhanced water barrier, mechanical and antimicrobial properties. The unique features of the bio-nanocomposite with pH indication property demonstrated their potential usage in food packaging applications. Overall, bio-nanocomposite film showed reduced spoilage and increased shelf-life. The results could be of great relevance for the sustainable utilization of waste fish scale and replacement of synthetic polymers films for food packaging as an alternative with environmental sustainability.

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利用废弃鱼鳞制备具有新型性能的生物纳米复合膜

本研究的目的是研究利用废弃鱼鳞开发一种生物纳米复合薄膜，该薄膜以玉米淀粉为材料，包埋氧化锌纳米粒子和姜黄，作为合成塑料薄膜的替代品来包装食品。采用不同含量的鱼鳞粉和玉米淀粉制备了四种不同类型的生物纳米复合膜。研究人员检查了这些薄膜的物理和化学特性，包括质地、颜色、在热水中的溶解度、抗拉强度、有机含量和形状。采用红外光谱、紫外可见光谱和扫描电镜对膜进行了表征。所制备的生物纳米复合膜具有较好的阻水性、力学性能和抗菌性能。具有pH指示性的生物纳米复合材料的独特特性显示了其在食品包装领域的潜在应用前景。总体而言，生物纳米复合膜显示出减少腐败和延长保质期。研究结果对鱼鳞废弃物的可持续利用和食品包装中合成聚合物薄膜的替代具有环境可持续性意义。

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Environmental Technology and Innovation

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