Please use this identifier to cite or link to this item:
https://hdl.handle.net/10216/104732
Author(s): | Alberto Domínguez Oscar Rodríguez Ana Paula M. Tavares Eugénia A. Macedo Mª Asunción Longo Mª Ángeles Sanromán |
Title: | Studies of laccase from Trametes versicolor in aqueous solutions of several methylimidazolium ionic liquids |
Issue Date: | 2011 |
Abstract: | Stability and kinetic behavior of laccase from Trametes versicolor in the presence of several ionic liquids from the methylimidazolium family have been investigated. In general laccase stability diminished as the size of the alkylic substitute in the methylimidazolium ring increased. Higher concentrations of ionic liquids caused more destabilization than lower ones. Thus, low concentrations of [C(2)mim(+)][EtSO(4)(-)] allowed maintaining enzymatic stability. [C(4)mim(+)][Cl(-)] appeared to have a stabilizing effect on laccase, as little activity decay was observed within three weeks. Kinetic studies indicated that both [C(2)mim(+)][EtSO(4)(-)] and [C(4)mim(+)][Cl(-)] inhibited laccase activity, although 10-fold more [C(2)mim(+)][EtSO(4)(-)] than [C(4)mim(+)][Cl(-)] was required to cause the same degree of inhibition. A kinetic model was developed to represent the experimental data. |
Subject: | Ciências Tecnológicas, Ciências da engenharia e tecnologias Technological sciences, Engineering and technology |
Scientific areas: | Ciências da engenharia e tecnologias Engineering and technology |
URI: | https://hdl.handle.net/10216/104732 |
Related Information: | info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e a Tecnologia/Programa de Financiamento Plurianual de Unidades de I&D/PEst-C/EQB/LA0020/2011/Projeto Estratégico-LA 20 - 2011-2012/LA 20 info:eu-repo/grantAgreement/CRUP - Conselho de Reitores das Universidades Portuguesas/Acções Integradas Luso-Espanholas/E-27/09/Ionic Liquids as Solvents for Enzymatic Catalysis, Acção Integrada Luso-Espanhola/E-27/09 |
Document Type: | Artigo em Revista Científica Internacional |
Rights: | restrictedAccess |
Appears in Collections: | FEUP - Artigo em Revista Científica Internacional |
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