Article
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS  (1998)

Hydroxamate iron complex with phenoloxidase activity acting on lignin and chlorolignins

Santiago M.F.; Duran, N.; Parra C.; Rodriguez J.

Keywords: iron, model, acid, complex, ion, acids, ph, agents, fungi, strength, lignin, siderophores, article, environmental, ferrozine, concentration, ferrous, ferric, monooxygenase, siderophore, chemical, priority, journal, Hydrogen-Ion, Models,, ionic, Chelating, Oxidation-Reduction, Biodegradation,, hydroxamic, deferoxamine, monophenol, acetohydroxamic

Abstract

The properties of a siderophore model, acetohydroxamic acid (AHA), of desferral were studied. The pH, ionic strength, and AHA/Fe(III) ratios for o-dianisidine oxidation were optimized. Phenoloxidase activity of hydroxamates/Fe(III) acting on o-dianisidine at pH 7.0 and pH 3.0 was observed. Under these conditions, AHA was able to reduce Fe(III) to Fe(II) followed by ferrozine complexation. AHA/Fe(III) complex degraded lignin and chlorolignins from kraft effluent E1 65% and 85%, respectively, after 24 h.

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Título de la Revista: BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
Volumen: 249
Número: 3
Editorial: ACADEMIC PRESS INC ELSEVIER SCIENCE
Fecha de publicación: 1998
Página de inicio: 719
Página final: 722
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-0032575529&partnerID=q2rCbXpz