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Comparative Mechanical Properties of Cassava (Manihot esculenta) and Potato (Ipomoea batatas) Peel Starch Biodegradable Plastics in Food Packaging
Summary
Researchers compared the mechanical properties of bioplastics derived from cassava and potato peel starches against conventional synthetic plastics for food packaging, finding these agricultural byproducts offer viable biodegradable alternatives with competitive performance characteristics.
This study aimed to compare the mechanical properties of cassava (Manihot esculenta) and potato (Ipomoea batatas) peel bioplastics as a food packaging materials to synthetic plastics.These findings highlight the potential of cassava and potato peel bioplastics as a viable alternative to traditional plastic packaging materials, with the added benefit of being biodegradable and environmentally friendly.The results showed that bioplastics from cassava and potato peels have mechanical properties comparable to conventional plastics a packaging material.The tensile strength, toughness, and breaking force increased with increasing glycerol concentration from 2 to 5%, while the water absorption and elongation at break decreased.Results showed that the cassava peel bioplastics with a plasticizer concentration of 5% had the highest tensile strength and elongation at break.On the other hand, the potato peel bioplastics with a plasticizer concentration of 3% had the highest tensile strength.The shear strength and thickness remained relatively constant across all concentrations and it gives futuristic insights on studies can be conducted to optimize the concentration of glycerol and other additives to improve the mechanical properties of the bioplastic.Overall, this research contributes to the development of bioplastics and promotes the utilization of agricultural waste as a valuable resource in the production of sustainable materials.