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|Title:||Synthesis and structural characterization of a novel phenoxazinone dye by use of a fungal laccase||Authors:||Forte, Stefania
JAROSZ VILKOLAZKA, A
|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.
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