Key Points
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Innovative Cookie Creation: Researchers at Southern Illinois University (SIU) developed “µBites,” a cookie made from transformed waste PET plastic and plant scraps, utilizing yeast to create edible protein as a solution to food insecurity and plastic pollution.
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Transformation Process: Waste PET plastic and plant matter are broken down into water-soluble molecules, which yeast converts into protein, alongside producing vanilla flavoring and beta-carotene for color enhancement.
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Taste Test Results: In 2024, µBites received a score of 6.5 out of 9 on the Hedonic scale during a taste test, indicating moderate acceptability. Researchers aim to enhance its flavor for better consumer acceptance.
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Plastic Consumption Concerns: The average person ingests about 5 grams of plastic weekly, which poses various health risks, including inflammation and potential liver and brain function issues.
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Research Background: The cookie was first introduced at an American Chemical Society event and funded by a $25,000 NASA grant aimed at addressing food needs in space and on Earth.
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Conversion Method: The transformation of plastic into an edible form involves grinding PET and plant waste into a slurry and using heat and pressure to create a sugary syrup, then fermenting it with yeast.
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Future Plans: The research team plans to enhance flavor and conduct educational campaigns to foster public acceptance of µBites, emphasizing its sustainability and potential to recycle plastic waste.
What is the Hedonic Scale?
The Hedonic scale measures food preference, ranging from 1 (dislike extremely) to 9 (like extremely). µBites achieved a 6.5, suggesting it fell between “like slightly” and “like moderately.”
Overall, researchers continue to improve the recipe and address public concerns regarding the consumption of a product made from waste plastic.
