Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials

Hee Taek Kim; Mi Hee Ryu; Ye Jean Jung; Sooyoung Lim; Hye Min Song; Jeyoung Park; Sung Yeon Hwang; Hoe Suk Lee; Young Joo Yeon; Bong Hyun Sung; Uwe T. Bornscheuer; Si Jae Park; Jeong Chan Joo; Dongyeop X. Oh

doi:10.1002/cssc.202100909

Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials

Hee Taek Kim
, Mi Hee Ryu
, Ye Jean Jung
, Sooyoung Lim
, Hye Min Song
, Jeyoung Park
, Sung Yeon Hwang
, Hoe Suk Lee
, Young Joo Yeon
, Bong Hyun Sung
, Uwe T. Bornscheuer
, Si Jae Park
, Jeong Chan Joo
, Dongyeop X. Oh

Department of Chemical Engineering & Materials Science

Research output: Contribution to journal › Article › peer-review

70 Scopus citations

Abstract

Chemo-biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo-enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2-hydroxyethyl) terephthalate (BHET), mono(2-hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo-enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole-cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water-evaporation. This work demonstrates a proof-of-concept of a PET upcycling strategy via a combination of chemo-biological conversion of PET waste into multifunctional coating materials.

Original language	English
Pages (from-to)	4251-4259
Number of pages	9
Journal	ChemSusChem
Volume	14
Issue number	19
DOIs	https://doi.org/10.1002/cssc.202100909
State	Published - 5 Oct 2021

Bibliographical note

Publisher Copyright:
© 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH

Keywords

biocatalysis
catechol
esterase
poly(ethylene terephthalate)
upcycling

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10.1002/cssc.202100909

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title = "Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials",

abstract = "Chemo-biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo-enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2-hydroxyethyl) terephthalate (BHET), mono(2-hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo-enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole-cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water-evaporation. This work demonstrates a proof-of-concept of a PET upcycling strategy via a combination of chemo-biological conversion of PET waste into multifunctional coating materials.",

keywords = "biocatalysis, catechol, esterase, poly(ethylene terephthalate), upcycling",

author = "Kim, \{Hee Taek\} and \{Hee Ryu\}, Mi and Jung, \{Ye Jean\} and Sooyoung Lim and Song, \{Hye Min\} and Jeyoung Park and Hwang, \{Sung Yeon\} and Lee, \{Hoe Suk\} and Yeon, \{Young Joo\} and Sung, \{Bong Hyun\} and Bornscheuer, \{Uwe T.\} and Park, \{Si Jae\} and Joo, \{Jeong Chan\} and Oh, \{Dongyeop X.\}",

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doi = "10.1002/cssc.202100909",

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T1 - Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials

AU - Kim, Hee Taek

AU - Hee Ryu, Mi

AU - Jung, Ye Jean

AU - Lim, Sooyoung

AU - Song, Hye Min

AU - Park, Jeyoung

AU - Hwang, Sung Yeon

AU - Lee, Hoe Suk

AU - Yeon, Young Joo

AU - Sung, Bong Hyun

AU - Bornscheuer, Uwe T.

AU - Park, Si Jae

AU - Joo, Jeong Chan

AU - Oh, Dongyeop X.

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N2 - Chemo-biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo-enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2-hydroxyethyl) terephthalate (BHET), mono(2-hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo-enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole-cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water-evaporation. This work demonstrates a proof-of-concept of a PET upcycling strategy via a combination of chemo-biological conversion of PET waste into multifunctional coating materials.

AB - Chemo-biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo-enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2-hydroxyethyl) terephthalate (BHET), mono(2-hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo-enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole-cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water-evaporation. This work demonstrates a proof-of-concept of a PET upcycling strategy via a combination of chemo-biological conversion of PET waste into multifunctional coating materials.

KW - biocatalysis

KW - catechol

KW - esterase

KW - poly(ethylene terephthalate)

KW - upcycling

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Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials

Abstract

Bibliographical note

Keywords

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