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Purnananda Guptasarma, PhD, 2023 Tata Transformation Prize Sustainability Winner

Professor Purnananda Guptasarma from the Indian Institute of Science Education and Research Mohali was selected by the jury for his breakthrough methods to degrade polyethylene terephthalate (PET), a common plastic pollutant, using enzymes. PET is currently produced and used at unsustainable levels, creating worldwide plastic pollution and micro-plastic contamination in the air, water, and soil, as well as in animal and human bodies. Only 9% percent of PET is actually recycled worldwide. Guptasarma’s enzyme-driven strategy uses engineered thermostable enzymes and reactions to demonstrate that solid PET can be broken up into its smallest molecular building blocks with high yield and ultra-high purity to enable PET’s degradation and recycling into virgin plastic. Building on this proof of concept at the laboratory-scale, Guptasarma will further identify and improve enzymatic reagents and reactions for PET degradation and attempt to produce the best enzymes in quantities allowing pilot-scale PET-waste degradation and recycling. Learn more about the Tata Transformation Prize at https://www.nyas.org/awards/tata-tran...