Kinetics of peroxidase-catalyzed oxidation of quercetin in the presence of β-cyclodextrinстатья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Авторы:
Oleinik L.I. ,
Buslova T.S. ,
Veselova I.A. ,
Shekhovtsova T.N.
Журнал:
Moscow University Chemistry Bulletin
Том:
66
Номер:
3
Год издания:
2011
Издательство:
Allerton Press Inc.
Местоположение издательства:
United States
Первая страница:
166
Последняя страница:
170
DOI:
10.3103/S0027131411030084
Аннотация:
It is established that the rate of peroxidase-catalyzed oxidation of flavonoid quercetin is increased by 20% in the presence of macrocyclic complexing agent β-cyclodextrin. The comparison of the kinetic parameters of the indicated reaction in the presence and in the absence of β-cyclodextrin shows that its introduction does not significantly influence the specificity of the enzyme with respect to the reducing substrate (characterized as kcat/KM ratio), while the increase in the reaction rate does not depend on the duration of the incubation of quercetin with β-cyclodextrin. It is assumed that the increase of the reaction rate is associated with nonspecific interaction between β-cyclodextrin and quercetin oxidation product. © 2011 Allerton Press, Inc.
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