PMID- 33865980 OWN - NLM STAT- MEDLINE DCOM- 20211124 LR - 20211124 IS - 1096-7184 (Electronic) IS - 1096-7176 (Linking) VI - 66 DP - 2021 Jul TI - Towards bio-upcycling of polyethylene terephthalate. PG - 167-178 LID - S1096-7176(21)00047-1 [pii] LID - 10.1016/j.ymben.2021.03.011 [doi] AB - Over 359 million tons of plastics were produced worldwide in 2018, with significant growth expected in the near future, resulting in the global challenge of end-of-life management. The recent identification of enzymes that degrade plastics previously considered non-biodegradable opens up opportunities to steer the plastic recycling industry into the realm of biotechnology. Here, the sequential conversion of post-consumer polyethylene terephthalate (PET) into two types of bioplastics is presented: a medium chain-length polyhydroxyalkanoate (PHA) and a novel bio-based poly(amide urethane) (bio-PU). PET films are hydrolyzed by a thermostable polyester hydrolase yielding highly pure terephthalate and ethylene glycol. The obtained hydrolysate is used directly as a feedstock for a terephthalate-degrading Pseudomonas umsongensis GO16, also evolved to efficiently metabolize ethylene glycol, to produce PHA. The strain is further modified to secrete hydroxyalkanoyloxy-alkanoates (HAAs), which are used as monomers for the chemo-catalytic synthesis of bio-PU. In short, a novel value-chain for PET upcycling is shown that circumvents the costly purification of PET monomers, adding technological flexibility to the global challenge of end-of-life management of plastics. CI - Copyright (c) 2021 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Tiso, Till AU - Tiso T AD - iAMB - Institute of Applied Microbiology. ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, D-52074, Aachen, Germany. FAU - Narancic, Tanja AU - Narancic T AD - BiOrbic - SFI Bioeconomy Research Centre, University College Dublin, Belfield, Dublin 4, Ireland; School of Biomolecular and Biomedical Science and UCD Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland. FAU - Wei, Ren AU - Wei R AD - Department of Microbiology and Bioprocess Technology, Institute of Biochemistry, Leipzig University, Johannisallee 23, D-04103, Leipzig, Germany. FAU - Pollet, Eric AU - Pollet E AD - BioTeam/ICPEES-ECPM, UMR CNRS 7515, Strasbourg University, 25 rue Becquerel, F-67087, Strasbourg Cedex 2, France. FAU - Beagan, Niall AU - Beagan N AD - BiOrbic - SFI Bioeconomy Research Centre, University College Dublin, Belfield, Dublin 4, Ireland. FAU - Schroder, Katja AU - Schroder K AD - iAMB - Institute of Applied Microbiology. ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, D-52074, Aachen, Germany. FAU - Honak, Annett AU - Honak A AD - Department of Microbiology and Bioprocess Technology, Institute of Biochemistry, Leipzig University, Johannisallee 23, D-04103, Leipzig, Germany. FAU - Jiang, Mengying AU - Jiang M AD - BioTeam/ICPEES-ECPM, UMR CNRS 7515, Strasbourg University, 25 rue Becquerel, F-67087, Strasbourg Cedex 2, France; SOPREMA, 14 rue de Saint-Nazaire, F-67025 Strasbourg Cedex, France. FAU - Kenny, Shane T AU - Kenny ST AD - Bioplastech Ltd., NovaUCD, Belfield Innovation Park, University College Dublin, Belfield, Dublin 4, Ireland. FAU - Wierckx, Nick AU - Wierckx N AD - iAMB - Institute of Applied Microbiology. ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, D-52074, Aachen, Germany; Institute of Bio- and Geosciences IBG-1: Biotechnology, Forschungszentrum Julich, 52425, Julich, Germany. FAU - Perrin, Remi AU - Perrin R AD - SOPREMA, 14 rue de Saint-Nazaire, F-67025 Strasbourg Cedex, France. FAU - Averous, Luc AU - Averous L AD - BioTeam/ICPEES-ECPM, UMR CNRS 7515, Strasbourg University, 25 rue Becquerel, F-67087, Strasbourg Cedex 2, France. FAU - Zimmermann, Wolfgang AU - Zimmermann W AD - Department of Microbiology and Bioprocess Technology, Institute of Biochemistry, Leipzig University, Johannisallee 23, D-04103, Leipzig, Germany. FAU - O'Connor, Kevin AU - O'Connor K AD - BiOrbic - SFI Bioeconomy Research Centre, University College Dublin, Belfield, Dublin 4, Ireland; School of Biomolecular and Biomedical Science and UCD Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland. Electronic address: kevin.oconnor@ucd.ie. FAU - Blank, Lars M AU - Blank LM AD - iAMB - Institute of Applied Microbiology. ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, D-52074, Aachen, Germany. Electronic address: lars.blank@rwth-aachen.de. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210416 PL - Belgium TA - Metab Eng JT - Metabolic engineering JID - 9815657 RN - 0 (Plastics) RN - 0 (Polyethylene Terephthalates) RN - EC 3.- (Hydrolases) RN - Pseudomonas umsongensis SB - IM MH - Hydrolases MH - Plastics MH - *Polyethylene Terephthalates MH - *Pseudomonas OTO - NOTNLM OT - Biopolymers OT - Metabolic engineering OT - Polyethylene terephthalate (PET) degradation OT - Pseudomonas putida OT - Synthetic biology EDAT- 2021/04/19 06:00 MHDA- 2021/11/25 06:00 CRDT- 2021/04/18 20:40 PHST- 2020/09/14 00:00 [received] PHST- 2021/02/24 00:00 [revised] PHST- 2021/03/13 00:00 [accepted] PHST- 2021/04/19 06:00 [pubmed] PHST- 2021/11/25 06:00 [medline] PHST- 2021/04/18 20:40 [entrez] AID - S1096-7176(21)00047-1 [pii] AID - 10.1016/j.ymben.2021.03.011 [doi] PST - ppublish SO - Metab Eng. 2021 Jul;66:167-178. doi: 10.1016/j.ymben.2021.03.011. Epub 2021 Apr 16.