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Determination of phenolic acids using Trametes versicolor laccase

TitoloDetermination of phenolic acids using Trametes versicolor laccase
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2007
AutoriOdaci, D., Timur S., Pazarlioglu N., Montereali Maria Rita, Vastarella W, Pilloton R., and Telefoncu A.
RivistaTalanta
Volume71
Paginazione312-317
Parole chiaveBiosensors, Body fluids, Carboxylic acids, Enzymes, Ferrocenes, Graphite electrodes, Laccase biosensors, pH effects, Phenolic acids, Phenols, Screen-printed electrodes
Abstract

Two biosensors based on Trametes versicolor laccase (TvL) were developed for the determination of phenolic compounds. Commercial oxygen electrode and ferrocene-modified screen-printed graphite electrodes were used for preparation of laccase biosensors. The systems were calibrated for three phenolic acids. Linearity was obtained in the concentration range 0.1-1.0 μM caffeic acid, 0.05-0.2 μM ferulic acid, 2.0-14.0 μM syringic acid for laccase immobilised on a commercial oxygen electrode and 2.0-30.0 μM caffeic acid, 2.0-10.0 μM ferulic acid, 4.0-30.0 μM syringic acid for laccase immobilised on ferrocene-modified screen-printed electrodes. Furthermore, optimal pH, temperature and thermal stability studies were performed with the commercial oxygen electrode. Both electrodes were used for determination of a class of phenolic acids, achieving a cheap and fast tool and an easy to be used procedure for screening real samples of human plasma. © 2006 Elsevier B.V. All rights reserved.

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cited By 31

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-33845939370&doi=10.1016%2fj.talanta.2006.04.032&partnerID=40&md5=2bbfc26eb66fc866521ae3590f50a771
DOI10.1016/j.talanta.2006.04.032
Citation KeyOdaci2007312