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Development and Evaluation of Biodegradable Food Packaging Using Natural Polymers
Summary
Scientists made a plastic-free food wrapper using potato starch instead of petroleum-based plastic, and it held up well enough to package food while breaking down naturally in the environment. This matters because conventional plastic packaging sheds microplastics that can end up in our food and bodies, so swapping it for something that safely decomposes could mean less plastic contamination in what we eat over time. That said, this is early-stage research, and more work is needed before these films show up on grocery store shelves.
Increasing environmental concerns associated with synthetic plastic packaging have created a need for eco-friendly alternatives. The present study aimed to develop and evaluate biodegradable food packaging using natural polymers. Biodegradable films were prepared using potato starch as the primary natural polymer and glycerol as a plasticizer through the solvent casting method. The prepared films were evaluated for physicochemical properties such as thickness, transparency, flexibility, tensile strength, moisture absorption, water solubility, and biodegradability. The developed film showed good film-forming ability, acceptable mechanical strength, flexibility, and biodegradability under environmental conditions. The results suggest that biodegradable packaging films prepared from natural polymers can serve as sustainable alternatives to conventional plastic packaging. These materials reduce environmental pollution and provide promising applications in food preservation and shelf-life improvement. Further studies may be conducted to enhance barrier properties and large-scale commercial applicability. Keywords: Biodegradable packaging, Natural polymers, Potato starch, Food packaging, Biopolymer film, Evaluation.