Researchers at Southern Illinois University Carbondale have developed a way to turn plastic bottles and corn waste into protein-rich cookies [1].
This development addresses three critical global challenges: the accumulation of plastic pollution, the threat of global food insecurity, and the logistical difficulty of feeding astronauts on deep-space missions [1], [2].
Led by Professor Lahiru Jayakody, the team utilized engineered microbes and baker's yeast to process the materials [1]. The process breaks down polyethylene terephthalate (PET) plastic, the common material used in water bottles, alongside agricultural residues from corn plants [1], [3].
The resulting product, named µBites, is a vanilla-flavored cookie that can be produced via 3D printing [1], [3]. By converting abundant waste into a sustainable protein source, the researchers aim to create a food supply that is both environmentally friendly and nutrient-dense [2], [5].
Beyond terrestrial hunger, the team highlighted the potential for the cookies to support NASA deep-space missions [3]. Because the cookies are lightweight and possess a long shelf life, they are suitable for the extreme constraints of long-term space travel [3].
The project seeks to reduce the environmental footprint of plastic waste while providing a scalable solution for food shortages [1], [2]. By leveraging synthetic biology, the researchers have transformed a pollutant into a caloric resource [4].
“Researchers turn plastic bottles and corn waste into protein-rich cookies.”
This research represents a shift toward a circular economy where non-biodegradable waste is not merely recycled into new plastic, but upcycled into biological nutrients. If scalable, the ability to synthesize protein from PET plastic could reduce reliance on traditional livestock or soy-based proteins, though the transition from laboratory prototypes to mass consumer adoption will likely require extensive safety certifications and public acceptance of synthetic food sources.
