Abotbina Walid, Sapuan S M, Sultan M T H, Alkbir M F M, Ilyas R A
Advanced Engineering Materials and Composites Research Centre, Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forest and Forest Products, Universiti Putra Malaysia (UPM), Serdang 43400, Selangor, Malaysia.
Polymers (Basel). 2021 Oct 11;13(20):3487. doi: 10.3390/polym13203487.
This work aims to develop cornstarch (CS) based films using fructose (F), glycerol (G), and their combination (FG) as plasticizers with different ratios for food packaging applications. The findings showed that F-plasticized film had the lowest moisture content, highest crystallinity among all films, and exhibited the highest tensile strength and thermostability. In contrast, G-plasticized films showed the lowest density and water absorption with less crystallinity compared to the control and the other plasticized film. In addition, SEM results indicated that FG-plasticized films had a relatively smoother and more coherent surface among the tested films. The findings have also shown that varying the concentration of the plasticizers significantly affected the different properties of the plasticized films. Therefore, the selection of a suitable plasticizer at an appropriate concentration may significantly optimize film properties to promote the utilization of CS films for food packaging applications.
这项工作旨在开发以玉米淀粉（CS）为基础的薄膜，使用果糖（F）、甘油（G）及其组合（FG）作为增塑剂，以不同比例用于食品包装应用。研究结果表明，F增塑薄膜的水分含量最低，在所有薄膜中结晶度最高，并且具有最高的拉伸强度和热稳定性。相比之下，G增塑薄膜的密度和吸水率最低，与对照薄膜和其他增塑薄膜相比结晶度更低。此外，扫描电子显微镜结果表明，在测试的薄膜中，FG增塑薄膜的表面相对更光滑、更连贯。研究结果还表明，改变增塑剂的浓度会显著影响增塑薄膜的不同性能。因此，选择合适浓度的合适增塑剂可以显著优化薄膜性能，以促进CS薄膜在食品包装应用中的利用。
