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Diaminated Cellulose Beads as a Sustainable Support for Industrially Relevant Lipases

Califano, Davide ; Schoevaart, Rob ; Barnard, Katie E. ; Callaghan, Ciarán ; Mattia, Davide and Edler, Karen J. LU orcid (2024) In ACS Sustainable Chemistry and Engineering 12(20). p.7703-7712
Abstract

Environmentally persistent polystyrene or polyacrylic beads are used as supports in enzyme large-scale bioprocesses, including conversion glucose isomerization for high-fructose corn syrup production, hydrolysis of lactose, and synthesis of active pharmaceutical ingredients. In this paper, we report the development of a novel sustainable and scalable method to produce diaminated cellulose beads (DAB) as highly efficient alternative supports for industrially relevant lipases. Regenerated cellulose beads were grafted with diaminated aliphatic hydrocarbons via periodate oxidation and reductive amination. The oxidation step indicated that aldehyde content can be easily tuned through the reaction time and concentration of reactants.... (More)

Environmentally persistent polystyrene or polyacrylic beads are used as supports in enzyme large-scale bioprocesses, including conversion glucose isomerization for high-fructose corn syrup production, hydrolysis of lactose, and synthesis of active pharmaceutical ingredients. In this paper, we report the development of a novel sustainable and scalable method to produce diaminated cellulose beads (DAB) as highly efficient alternative supports for industrially relevant lipases. Regenerated cellulose beads were grafted with diaminated aliphatic hydrocarbons via periodate oxidation and reductive amination. The oxidation step indicated that aldehyde content can be easily tuned through the reaction time and concentration of reactants. Reductive amination of dialdehyde cellulose was more efficient as the length of the diaminated hydrocarbon compound increased. Morphological analysis of DAB showed that cellulose chemical grafting enabled the preservation of the bead shape and internal structure upon freeze-drying. Enzymatic degradability studies demonstrated that chemical functionalization did not undermine enzyme cellulose hydrolysis. The addition of aminated moieties on cellulose dramatically increased absorption efficiency for all industrially relevant lipases used, reaching 100% for Thermomyces lanuginosus lipase (TLL). Storage and recyclability experiments demonstrated that enzymes were retained and recyclable for at least nine cycles, although the activity gradually declined after each cycle. Medium chain triacylglycerol hydrolysis in a SpinChem reactor using TLL immobilized on 1,6 DAB exhibited higher activity compared to acrylic beads (588 vs 459 U/g) suggesting that biodegradable cellulose-based materials could be a valid and attractive alternative to plastics carriers.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biocatalysis, biotransformation, cellulose beads, enzyme immobilization, lipases, mitigation plastic pollution, renewable biodegradable carrier
in
ACS Sustainable Chemistry and Engineering
volume
12
issue
20
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:38783841
  • scopus:85192835439
ISSN
2168-0485
DOI
10.1021/acssuschemeng.3c07849
language
English
LU publication?
no
additional info
Publisher Copyright: © 2024 The Authors. Published by American Chemical Society.
id
ce08533f-1f5e-4b30-a040-21b14ad19b8b
date added to LUP
2024-05-27 11:28:21
date last changed
2024-10-29 02:53:08
@article{ce08533f-1f5e-4b30-a040-21b14ad19b8b,
  abstract     = {{<p>Environmentally persistent polystyrene or polyacrylic beads are used as supports in enzyme large-scale bioprocesses, including conversion glucose isomerization for high-fructose corn syrup production, hydrolysis of lactose, and synthesis of active pharmaceutical ingredients. In this paper, we report the development of a novel sustainable and scalable method to produce diaminated cellulose beads (DAB) as highly efficient alternative supports for industrially relevant lipases. Regenerated cellulose beads were grafted with diaminated aliphatic hydrocarbons via periodate oxidation and reductive amination. The oxidation step indicated that aldehyde content can be easily tuned through the reaction time and concentration of reactants. Reductive amination of dialdehyde cellulose was more efficient as the length of the diaminated hydrocarbon compound increased. Morphological analysis of DAB showed that cellulose chemical grafting enabled the preservation of the bead shape and internal structure upon freeze-drying. Enzymatic degradability studies demonstrated that chemical functionalization did not undermine enzyme cellulose hydrolysis. The addition of aminated moieties on cellulose dramatically increased absorption efficiency for all industrially relevant lipases used, reaching 100% for Thermomyces lanuginosus lipase (TLL). Storage and recyclability experiments demonstrated that enzymes were retained and recyclable for at least nine cycles, although the activity gradually declined after each cycle. Medium chain triacylglycerol hydrolysis in a SpinChem reactor using TLL immobilized on 1,6 DAB exhibited higher activity compared to acrylic beads (588 vs 459 U/g) suggesting that biodegradable cellulose-based materials could be a valid and attractive alternative to plastics carriers.</p>}},
  author       = {{Califano, Davide and Schoevaart, Rob and Barnard, Katie E. and Callaghan, Ciarán and Mattia, Davide and Edler, Karen J.}},
  issn         = {{2168-0485}},
  keywords     = {{biocatalysis; biotransformation; cellulose beads; enzyme immobilization; lipases; mitigation plastic pollution; renewable biodegradable carrier}},
  language     = {{eng}},
  number       = {{20}},
  pages        = {{7703--7712}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{ACS Sustainable Chemistry and Engineering}},
  title        = {{Diaminated Cellulose Beads as a Sustainable Support for Industrially Relevant Lipases}},
  url          = {{http://dx.doi.org/10.1021/acssuschemeng.3c07849}},
  doi          = {{10.1021/acssuschemeng.3c07849}},
  volume       = {{12}},
  year         = {{2024}},
}