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Comparative Mechanical Properties of Cassava (Manihot esculenta) and Potato (Ipomoea batatas) Peel Starch Biodegradable Plastics in Food Packaging
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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.
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Synthesis and Characterization of Starch-Based Bioplastics Derived from Cassava (Manihot esculenta) Peels and Oil Palm Empty Fruit Bunch (Elaeis guineensis)
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This study synthesized and characterized bioplastics from cassava peel starch and cellulose from Oil Palm Empty Fruit Bunch (OPEFB), testing 10 variants by varying cellulose (0–50%) and glycerol (0–50%) concentrations. Cellulose increased tensile strength from 3.7 to 12.1 MPa and reduced water absorption and biodegradation rate, while glycerol enhanced flexibility but increased hydrophilicity, with a strong correlation (R² = 0.89) between water absorption and biodegradation confirming moisture governs the degradation process.
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This study developed biodegradable bioplastic films from cassava starch and onion peel powder (OPP) using central composite design optimization, targeting improved mechanical performance and biodegradability for food packaging applications. Three optimized formulations were identified that showed 29–32% weight loss in soil burial tests over 30 days, confirming biodegradability as a sustainable alternative to conventional plastic packaging.
Preparation and Characterization of Potato Peel Starch-Based Bioplastic Using Different Starch and Gelatin Concentrations
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Scientists turned potato peels — normally kitchen waste — into a biodegradable plastic-like material by mixing potato starch with gelatin, testing different amounts of each. They found that using more starch and gelatin created a sturdier, less water-absorbent film, suggesting this waste-based bioplastic could one day replace some conventional plastic packaging. Since traditional plastics break down into microplastics that end up in our food and water, developing biodegradable alternatives like this one matters for reducing our long-term exposure to plastic pollution.
A Review of Potency of Cassava Peel Waste and Seaweed Carrageenan as Environmentally Friendly Bioplastic
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This Indonesian review examines the potential of cassava peel waste and seaweed carrageenan as raw materials for making biodegradable bioplastics. Replacing conventional plastic packaging with plant-based alternatives could reduce the microplastic particles that accumulate in soil and water from degrading conventional plastics.
A Study of Physical and Mechanical Properties: Durian Peel Starch-Sago Starch Biocomposite Bioplastic with Sorbitol Plasticizer Reinforced by Chitosan and Zinc Oxide
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Researchers developed bioplastic films by combining durian peel starch with sago starch, sorbitol plasticizer, chitosan, and zinc oxide nanoparticles, and assessed their physical and mechanical properties. The resulting biocomposite showed improved tensile strength and flexibility compared to single-starch films, offering a biodegradable packaging alternative that avoids the microplastic release associated with conventional plastics.
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