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Research Letters in Physical Chemistry
Volume 2009 (2009), Article ID 614362, 4 pages
Research Letter

Oxidation of Quercetin by Myeloperoxidase

Laboratory of Physical Chemistry, VinĨa Institute of Nuclear Sciences, P.O. Box 522, 11001 Belgrade, Serbia

Received 3 February 2009; Accepted 12 March 2009

Academic Editor: Benjaram M. Reddy

Copyright © 2009 Tatjana Momić et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Study of effect of myeloperoxidase on quercetin at pH 6.0 indicated quercetin oxidation via the formation of the oxidation product. The stability of quercetin and oxidation product was investigated as a function of time by using spectrophotometric and HPLC techniques. The apparent pseudo first-order rate constants were calculated and discussed.