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Boosting bacterial nanocellulose production from chemically recycled post-consumer polyethylene terephthalate

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In this study, the possibility to modify the expensive Hestrin–Schramm medium for bacterial nanocellulose (BNC) production and replace significant amounts of glucose with terephthalic acid (TPA) derived after reactive extrusion processing of mixed plastic waste yielding post-consumer TPA (pcTPA), was evaluated from laboratory scale to fermentation at pilot scale. The study's findings highlight the positive impact of pcTPA on BNC yield, surpassing the performance of conventional TPA. The presence of pcTPA in the medium resulted in a BNC yield of 4.01 g/L in a scale-up step of 100 mL cultivation, while the positive control using glucose resulted in a yield of 3.57 g/L.

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Project title

Eco conversion of lower grade PET and mixed recalcitrant PET plastic waste into high performing biopolymers

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This project has received funding from the European Union’s Horizon Europe EIC Pathfinder programme under grant agreement No 101046758

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The project leading to this application has received funding from the European Union’s Horizon Europe EIC Pathfinder programme under agreement No 101046758

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Views and opinions expressed are of the author(s) only and do not necessarily reflect those of the European Union or European Innovation Council. Neither the European Union nor the granting authority can be held responsible for them.