Effect of buffer on orange II degradation by the peroxidase-hydrogen peroxide bleaching system

Abstract One of the latest bleaching systems is the degradation of Orange 2 by peroxidase (POD)-hydrogen peroxide (H2O2) bleaching. We studied the effect of buffer solutions with this bleaching system, which changed the decoloration rate of Orange 2. With the Carmody buffer, the total reaction time...

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Bibliographic Details
Published inJournal of Hokkaido University of Education. Natural Sciences (Japan) Vol. 54; no. 1
Main Authors Morita, M. (Hokkaido Univ. of Education, Sapporo (Japan)), Yamaguchi, E, Watanabe, T
Format Journal Article
LanguageEnglish
Published 01.09.2003
Subjects
BLEACHING
BUFFERING CAPACITY
CITRIC ACID
DECOLORIZATION
DEGRADATION
HYDROGEN PEROXIDE
PEROXIDASES
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Summary:Abstract One of the latest bleaching systems is the degradation of Orange 2 by peroxidase (POD)-hydrogen peroxide (H2O2) bleaching. We studied the effect of buffer solutions with this bleaching system, which changed the decoloration rate of Orange 2. With the Carmody buffer, the total reaction time was 60 min. With the Tris/HCl buffer, the total reaction time was 40 min. We consider that the difference in the decoloration rate of Orange 2 in peroxidase-hydrogen peroxide bleaching system was increased reactivity caused by Tris and decreased reactivity caused by the citric acid.
Bibliography:2004002370
U30
ISSN:1344-2570