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Assessment of IsPETase-Assisted Depolymerization of Terephthalate Aromatic Polyesters and the Effect of the Thioredoxin Fusion Domain

Wagner-Egea, Paula ; Tosi, Virginia ; Wang, Ping LU ; Grey, Carl LU ; Zhang, Baozhong LU and Linares-Pastén, Javier A. LU orcid (2021) In Applied Sciences (Switzerland) 11(18).
Abstract
Terephthalate polyesters such as poly(ethylene terephthalate) (PET) have been massively produced over the last few decades due to their attractive properties in multiple applications. However, due to their limited biodegradability, they have accumulated in landfills and oceans, posing an environmental threat. Enzymatic recycling technologies are predicted to generate long-term socioeconomic benefits. In the present work, we compared the IsPETase (from Ideonella sakaiensis 201-F6) activity on a series of polyesters, including poly(butylene) terephthalate (PBT), poly(hexamethylene) terephthalate (PHT) and Akestra™, with PET. The IsPETase showed remarkable activity toward PET (39% degradation of the original polyester) that was... (More)
Terephthalate polyesters such as poly(ethylene terephthalate) (PET) have been massively produced over the last few decades due to their attractive properties in multiple applications. However, due to their limited biodegradability, they have accumulated in landfills and oceans, posing an environmental threat. Enzymatic recycling technologies are predicted to generate long-term socioeconomic benefits. In the present work, we compared the IsPETase (from Ideonella sakaiensis 201-F6) activity on a series of polyesters, including poly(butylene) terephthalate (PBT), poly(hexamethylene) terephthalate (PHT) and Akestra™, with PET. The IsPETase showed remarkable activity toward PET (39% degradation of the original polyester) that was higher than that toward Akestra™ (0.13%), PBT (0.25%) and PHT (0.13%) after 72 h. Thus, based on experimental data and computational analysis, we report insights into IsPETase activity on a series of terephthalate-based polyesters. Aside from that, the fusion domain (Trx) effect in the production and activity of a recombinant Trx-IsPETase is reported. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Enzymatic depolymerization, IsPETase, thioredoxin, aromatic polyesters, plastic biodegradation
in
Applied Sciences (Switzerland)
volume
11
issue
18
article number
8315
pages
15 pages
publisher
MDPI AG
external identifiers
  • scopus:85114701347
ISSN
2076-3417
DOI
10.3390/app11188315
language
English
LU publication?
yes
id
21ab602c-6a1e-4d5b-ad00-7c6ac91cf6cd
date added to LUP
2021-09-08 17:22:38
date last changed
2022-04-27 03:47:51
@article{21ab602c-6a1e-4d5b-ad00-7c6ac91cf6cd,
  abstract     = {{Terephthalate polyesters such as poly(ethylene terephthalate) (PET) have been massively produced over the last few decades due to their attractive properties in multiple applications. However, due to their limited biodegradability, they have accumulated in landfills and oceans, posing an environmental threat. Enzymatic recycling technologies are predicted to generate long-term socioeconomic benefits. In the present work, we compared the IsPETase (from <i>Ideonella sakaiensis</i> 201-F6) activity on a series of polyesters, including poly(butylene) terephthalate (PBT), poly(hexamethylene) terephthalate (PHT) and Akestra™, with PET. The <i>Is</i>PETase showed remarkable activity toward PET (39% degradation of the original polyester) that was higher than that toward Akestra™ (0.13%), PBT (0.25%) and PHT (0.13%) after 72 h. Thus, based on experimental data and computational analysis, we report insights into <i>Is</i>PETase activity on a series of terephthalate-based polyesters. Aside from that, the fusion domain (Trx) effect in the production and activity of a recombinant Trx-<i>Is</i>PETase is reported.}},
  author       = {{Wagner-Egea, Paula and Tosi, Virginia and Wang, Ping and Grey, Carl and Zhang, Baozhong and Linares-Pastén, Javier A.}},
  issn         = {{2076-3417}},
  keywords     = {{Enzymatic depolymerization; IsPETase; thioredoxin; aromatic polyesters; plastic biodegradation}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{18}},
  publisher    = {{MDPI AG}},
  series       = {{Applied Sciences (Switzerland)}},
  title        = {{Assessment of <i>Is</i>PETase-Assisted Depolymerization of Terephthalate Aromatic Polyesters and the Effect of the Thioredoxin Fusion Domain}},
  url          = {{http://dx.doi.org/10.3390/app11188315}},
  doi          = {{10.3390/app11188315}},
  volume       = {{11}},
  year         = {{2021}},
}