Browsing Research Publications/Outputs by Subject "Laccase"

Now showing items 1-9 of 9

Application of biocatalysis in synthetic chemistry

Author: Brady, D ; Molefe, M ; Steenkamp, Lucia H ; Parkinson, C ; Jordaan, J ; Visser, Daniel F ; Simpson, C ; Chhiba, Varsha P ; Mathiba, K Date: Nov 2006 It was found that the nitrile hydratases in microorganisms isolated from around the world had infra-species amino acid sequence differences, and this provided an explanation for the variability of nitrile substrate usage within the species. ... Read more
Development of a Laccase biosensor for determination of phenolic micropollutants in surface waters

Author: De Souza Gil, E ; Rezende, SG ; Ribeiro Júnior, EJM ; Barcelos, HT ; Scalize, PS ; Santiago, MF ; Quintino, MP ; Somerset, VS Date: 2014 Laccase is a poliphenoloxidase enzyme that catalyzes the oxidation of phenolic compounds in the corresponding quinones. The current obtained in this redox process can be used for quantitative analysis. In this work, a carbon paste biosensor ... Read more
Diamination by n-coupling using a commercial laccase

Author: Wellington, Kevin W ; Steenkamp, P ; Brady, D Date: Feb 2010 Nuclear diamination of p-hydrobenzoquinones with aromatic and aliphatic primary amines was catalyzed by a immobilised commercial laccase, Denilite II Base, from Novozymes. The amine and the p-hydrobenzoquinone was reacted under mild conditions ... Read more
Fungal and enzymatic remediation of a wine lees and five wine-related distillery wastewaters

Author: Strong, PJ ; Burgess, JE Date: Sep 2008 The aim of this work was to characterise wine-related wastewaters and ascertain the wastewater concentrations that were optimal for treatment by Trametes pubescens. Laccase production was also monitored. Crudely purified laccase was tested ... Read more
A Laccase-catalysed one-pot synthesis of aminonaphthoquinones and their anticancer activity

Author: Wellington, Kevin W ; Kolesnikova, NI Date: May 2012 Nuclear monoamination of a 1,4-naphthohydroquinone with primary aromatic amines was catalysed by the commercial laccase, Novozym 51003, from Novozymes to afford aminonaphthoquinones. The synthesis was accomplished by reacting a mixture of the ... Read more
A laccase-catalysed synthesis of triaminated cyclohexa-2,4-dienones from catechol

Author: Wellington, Kevin W ; Govindjee, Varsha P ; Steenkamp, Paul Date: Dec 2018 A commercial laccase, Suberase from Novozymes, catalyses the synthesis of triaminated cyclohexa-2,4-dienones and a methylbenzene-1,2-diol derivative. The primary amine (analine) and the catechol was reacted under mild conditions (40C) in a ... Read more
Laccase-catalyzed C-S and C-C coupling for a one-pot synthesis of 1,4-naphthoquinone sulfides and 1,4-naphthoquinone sulfide dimers

Author: Wellington, Kevin W ; Gordon, GER ; Ndlovu, LA ; Steenkamp, P Date: Jun 2013 Oxidative C-S and C-C bond formation with aryl and alkyl thiols was catalyzed under mild conditions in a reaction vessel open to air at pH 4.5 in the presence of a commercial laccase (Novozym 51003 or Suberase) and a cosolvent (DMF) to afford ... Read more
A one-pot laccase-catalysed synthesis of 5,6-dihydroxylated benzo[b]furans and catechol derivatives, and their anticancer activity

Author: Wellington, Kevin W ; Qwebani-Ogunleye, T ; Kolesnikova, NI ; Brady, D ; De Koning, CB Date: Apr 2013 A commercial laccase, Suberase® from Novozymes, was used to catalyse the synthesis of 5,6-dihydroxylated benzo[b]furans and catechol derivatives. The yields were, in some cases, similar to or better than that obtained by other enzymatic, ... Read more
A one-pot laccase-catalysed synthesis of coumestan derivatives and their anticancer activity

Author: Qwebani-Ogunleye, Tozama ; Kolesnikova, Natalia I ; Steenkamp, Paul A ; De Koning, CB ; Brady, D ; Wellington, Kevin W Date: Dec 2016 Suberase®, a commercial laccase from Novozymes, was used to catalyse the synthesis of coumestans. The yields, in some cases, were similar to or better than that obtained by other enzymatic, chemical or electrochemical syntheses. The compounds ... Read more

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Browsing Research Publications/Outputs by Subject "Laccase"

Browsing Research Publications/Outputs by Subject "Laccase"

Browse

All of ResearchSpace

This Community

Quick Links

Legislation and compliance

General Enquiries

Social Connect