Goodbye to plastic bags: A vital liquid to wrap the fruits and then dry them


A research team from Aalto University in Finland has created a bio-liquid that can be wrapped in fruits and vegetables and then dried, as an alternative to environmentally harmful plastic bags. Packaging bags protect fruits and vegetables from spoilage and contaminants, keep them fresher for longer, but also generate a significant amount of plastic waste.

This global problem sparked the thinking of the team of four female students in the Departments of Chemical Engineering and Contemporary Design to come up with a solution to the problem, as they participated in a course on creating designs compatible with biomaterials. The research team believes that the bio-liquid dipping method could one day also be used for packaging other vegetables and fruits, as it would be a new start for the marketing of sustainable packaging systems, instead of plastic bags.

The research team will present the idea of ​​the DipWrap bio-fluid at the Biodesign Challenge International Summit of the United States Biodesign Challenge BDC, which is scheduled to be held later this month. More than 50 teams from around the world will present their biotechnology projects to a panel of academics and professionals in the design industry.

The research team discovered a renewable alternative to the millions of pieces of plastic film that are discarded every day, which will end the era of plastic film use. The team came up with a completely new method for packaging the fruits of cucumbers, which relies on a liquid bio-gel solution in which the cucumbers are dipped, then the liquid turns into a transparent film and dries in a few seconds.

The research team designed the liquid bio from red agar algae, carnauba wax, and cellulose nanocrystals CNC. One of the challenges facing the research team was that they could not find any previous studies on similar solutions.

Louise Callay, a student involved in the innovation said, we went to the lab every week and tested several materials, and we came up with the idea of ​​using agar algae, and we added wax to it to make waterproof films, and CNC material for its antibacterial properties.

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