Pineapple scraps don’t have to go to waste — they can be used to make bioplastics

A collaborative research between universities in Thailand and Malaysia have developed a unique kind of bioplastic sheet using pineapple stems from agricultural waste. The researchers created this bioplastic sheet using a byproduct of the bromelain industry, specially utilizing the leftover pineapple stems from agricultural waste. This new type of bioplastic sheet has the potential to be used as single-use packaging material.

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As published in the journal Polymers, “the team used the starch from the pineapple stems as the main ingredient. They added glycerol and calcium carbonate to make the material easy to shape and strong. By altering the amounts of these ingredients, the team made samples with different strengths and properties”.

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The newly developed material resulted resistant to water and didn’t absorb as much water as similar materials. When buried in the soil, it completely degraded into tiny pieces in a timespan of two weeks. The team made a test version of a bread clip using this material, which served its purpose efficiently. Using pineapple stem starch can be a good and eco-friendly choice, and a step toward a more sustainable way of making small plastic products and promoting a circular economy.

This is an excerpt. Read the original post here