fulltext.study @t Gmail

Mechanism of Reactive Orange 16 degradation with the white rot fungus Irpex lacteus

Paper ID Volume ID Publish Year Pages File Format Full-Text
35695 45102 2007 6 PDF Available
Title
Mechanism of Reactive Orange 16 degradation with the white rot fungus Irpex lacteus
Abstract

The study focuses on the Reactive Orange 16 (RO16) degradation products obtained by fungal treatment of the dye. Eighty percent of dye decolorization was achieved within 24 h by Irpex lacteus cultures immobilized on polyurethane foam (PUF). Dye degradation products were investigated using LC–MS analysis. Three compounds were identified as the dye intermediates: 6-acetamido-3,4-dioxo-3,4-dihydronaphthalene-2-sulfonate (m/z 294), (E)-2-(4-acetamidophenyl)-1-carboxyethenesulfonate (m/z 284), and 4-(2-hydroxyethylsulfonyl)phenolate (m/z 201). Despite significant laccase activities detected in the fungal cultures, no backward polymerization of the reaction products resulting in recurrent colorization was observed after fungal treatment of the dye solution.

Keywords
Irpex lacteus; Reactive Orange 16; Degradation; Dye intermediates; LC–MS; Laccase
First Page Preview
Mechanism of Reactive Orange 16 degradation with the white rot fungus Irpex lacteus
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 42, Issue 9, September 2007, Pages 1279–1284
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering