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Oxidation of non‐phenolic substrates: An expanded role for laccase in lignin biodegradation

Bourbonnais, Robert, Paice, Michael G.·1990·FEBS Letters

Abstract

In the presence of substrates such as Remazol Blue and 2,2'‐azinobis(3‐ethylbenzthiazoline‐6‐sulphonate) (ABTS), laccases Coriolus (Trametes) versicolor can also oxidize non‐phenolic lignin model compounds. Veratryl alcohol (I) and 1‐(3,4‐dimethoxyphenyl)‐2‐(2‐methoxyphenoxy)‐propane‐1, 3‐diol (III) were oxidized by laccase and mediator to give the α‐carbonyl derivatives. The β‐1 lignin model dimer, 1‐(3,4‐dimethoxyphenyl)‐2‐phenoxy‐ethane‐1, 2‐diol(II) was cleaved by laccase in the presence of ABTS to give veratraldehyde and benzaldehyde. On the basis of these observations, we propose that laccase is capable of oxidizing both phenolic and non‐phenolic moieties of lignin but that the latter is dependent on the co‐presence of primary laccase substrates.

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Authors
Bourbonnais, R., & Paice, M. G.
Venue
FEBS Letters
Publisher
Wiley
Published
1990-07-02
Volume
267
Issue
1
Pages
99-102
ISSN
  • 0014-5793 (ISSN-L)
  • 1873-3468
OpenAlex
W1604648834
Cited by
1,337
References
0
FWCI
11.75
Type
journal article
Language
en
Open access
closed

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