Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/5804
Title: Synthesis and structural characterization of a novel phenoxazinone dye by use of a fungal laccase
Authors: Forte, Stefania
Polak, J
Valensin, Daniela 
Taddei, Maurizio 
Basosi, Riccardo 
Vanhulle, S
JAROSZ VILKOLAZKA, A
Pogni, Rebecca 
Keywords: Fungal laccase; Biosynthesis; Phenoxazinone dye
Issue Date: 2010
Project: None 
Journal: JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC
Abstract: 
Laccase, isolated from Cerrena unicolor, is able to transform 3-amino-4-hydroxybenzensulfonic acid into a water soluble phenoxazine dye with an extinction coefficient (ε) of 8600M−1 cm−1. The dye has beencharacterized using a variety of different analytic and spectroscopic techniques like UV–vis spectroscopy, HPLC (High Performance Liquid Chromatography), ESI/MS (Electrospray Ionization Mass Spectrometry)and the following NMR experiments: 1H, 13C, TOCSY (Total Correlation Spectroscopy), HSQC (Heteronuclear SingleQuantumCoherence),HMBC(Heteronuclear Multiple Bond Coherence) showing the structureof 2-amino-3-oxo-3H-phenoxazine-8-sulfonic acid. The advantages of the presented biocatalytic system, in alignment with chemical system to obtain Curie 22, are eco-sustainability and one step performance.
Description: 
35620
URI: http://hdl.handle.net/20.500.12779/5804
ISSN: 1381-1177
DOI: 10.1016/j.molcatb.2009.12.018
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