Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamil Nadu, India.
Department of Biotechnology, Dhanalakshmi Srinivasan College of Arts and Science for Women (Autonomous), Perambalur, 621212, Tamil Nadu, India.
Environ Sci Pollut Res Int. 2023 Mar;30(12):34174-34187. doi: 10.1007/s11356-022-24429-z. Epub 2022 Dec 12.
Synthetic plastics are becoming hazardous wastes, posing a threat to environmental sustainable health; hence, they must be replaced with alternatives. This study aimed to prepare corn starch-based bioplastics using fish scale through film casting technique as an alternative to synthetic plastics. In this work, four types of bioplastic films (CSF, CSFSF1, CSFSF2, FSF) containing different percentages of fish-scale powder and corn starch were prepared. Physical and chemical properties such as texture, color, solubility in hot water, tensile strength, functional groups, and morphology of all the four types of the prepared bioplastics were analyzed. The mixture of fish-scale powder and corn starch powder in the ratio of 1:3 (CSFSF1) yielded the best results. Its average thickness is 0.0420 ± 0.001 mm, water absorption range is 55-60%, tensile strength is 6.06 ± 0.05 MPa, and thermal stability is 278.741 °C. In the biodegradability test, degradation was noticed after 7 days of treatment with organic waste. The degradation was confirmed by surface changes in the morphology and the development of Aspergillus sp. Corn starch film (CSF) exhibited the highest degradation (60%), while the fish-scales film (FSF) underwent the least degradation (28%). The produced bioplastics were prepared from eco-friendly, inexpensive, and natural materials. Thus, the present research has provided a viable alternative to synthetic plastics.
合成塑料正逐渐成为危险废物，对环境可持续健康构成威胁；因此，必须用替代品来取代它们。本研究旨在通过薄膜铸造技术，使用鱼鳞制备以玉米淀粉为基础的生物塑料，作为合成塑料的替代品。在这项工作中，制备了四种含有不同百分比鱼鳞粉和玉米淀粉的生物塑料薄膜（CSF、CSFSF1、CSFSF2、FSF）。分析了所有四种类型的生物塑料的物理和化学性质，如质地、颜色、在热水中的溶解度、拉伸强度、官能团和形态。鱼鳞粉和玉米淀粉粉以 1:3 的比例（CSFSF1）混合得到的结果最佳。其平均厚度为 0.0420±0.001mm，吸水率范围为 55-60%，拉伸强度为 6.06±0.05MPa，热稳定性为 278.741°C。在生物降解性测试中，经过 7 天的有机废物处理后，发现有降解现象。通过形貌表面的变化和曲霉属（Aspergillus sp.）的发展，确认了降解。玉米淀粉膜（CSF）表现出最高的降解（60%），而鱼鳞膜（FSF）的降解程度最低（28%）。所制备的生物塑料是由环保、廉价和天然材料制成的。因此，本研究为合成塑料提供了一种可行的替代品。
