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(Reference retrieved automatically from Google Scholar through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of aqueous extracts from Ceriporiopsis subvermispora-biotreated wood on the decolorization of Azure B by Fenton-like reactions

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Author(s):
Aguiar, Andre [1, 2] ; Ferraz, Andre [2]
Total Authors: 2
Affiliation:
[1] Univ Fed Sao Joao Del Rei, Dept Quim Biotecnol & Engn Bioproc, BR-36420000 Ouro Branco, MG - Brazil
[2] Univ Sao Paulo, Dept Biotechnol, Escola Engn Lorena, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: INTERNATIONAL BIODETERIORATION & BIODEGRADATION; v. 74, p. 61-66, 2012.
Web of Science Citations: 11
Abstract

Aqueous extracts from wood biotreated with the white-rot fungus Ceriporiopsis subvermispora were evaluated for their Fe3+- and Cu2+-reducing activities and their anti- or prooxidant properties in Fenton-like reactions to decolorize the recalcitrant dye Azure B. The decolorization of Azure B was strongly inhibited in the presence of 10% (v/v) wood extracts. Only 0.1% (v/v)-diluted extracts provided some enhancement of the Azure B decolorization. The iron-containing reactions decolorized more Azure B and consumed substantially more H2O2 than the reactions containing copper. This study demonstrates that water-soluble wood phenols exert anti- or prooxidant effects that depend on their concentration in the reactions and on the type of cation, Fe3+ or Cu2+, used to convert H2O2 to OH radicals. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 03/04465-6 - Importance of the low molecular mass mediators in the wood biodegradation by Ceriporiopsis subvermispora
Grantee:André Aguiar Mendes
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)