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2014 | 125 | 4A | A-57-A-60

Article title

Optical Spectroscopy Study of the Interaction Between Quercetin and Human Serum Albumin

Content

Title variants

Languages of publication

EN

Abstracts

EN
Optical methods are very useful for the study on behavior of molecules in albumin-containing solutions. The interaction between quercetin (QUE) and human serum albumin (HSA) under physiological conditions was investigated by the methods of UV-Vis absorption and fluorescence spectroscopy. Fluorescence data show that enhancing of quercetin fluorescence in the presence of HSA is the result of formation of the HSA-QUE complex. On the basis of fluorescence data, the binding affinity constant of quercetin to HSA is determined. In this paper we have attempted to perform a kinetic study of the oxidation of quercetin in presence of human serum albumin by absorption spectroscopy. It has been shown that quercetin easily oxidizes at pH 7.4. The addition of HSA to quercetin solution induces changes in the absorption spectrum. In the human serum albumin solution, the time of quercetin oxidation is longer than in the case of quercetin diluted in phosphate buffered saline. Human albumin also contributes to stabilization of quercetin. These results suggest that HSA prevents degradation of quercetin in blood.

Keywords

EN

Year

Volume

125

Issue

4A

Pages

A-57-A-60

Physical description

Dates

published
2014-04

Contributors

  • Medical Physics Division, Biophysics Department, Collegium Medicum of Nicolaus Copernicus University Jagiellońska 13, 85-067 Bydgoszcz, Poland
author
  • Medical Physics Division, Biophysics Department, Collegium Medicum of Nicolaus Copernicus University Jagiellońska 13, 85-067 Bydgoszcz, Poland

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.bwnjournal-article-appv125n4a11kz
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