Journal of Fluorescence

, Volume 18, Issue 3, pp 671–678

Probing the Interaction of Trans-resveratrol with Bovine Serum Albumin: A Fluorescence Quenching Study with Tachiya Model

Original Paper

DOI: 10.1007/s10895-008-0346-x

Cite this article as:
Xiao, J.B., Chen, X.Q., Jiang, X.Y. et al. J Fluoresc (2008) 18: 671. doi:10.1007/s10895-008-0346-x

Abstract

The interaction of trans-resveratrol (TRES) and bovine serum albumin (BSA) was investigated using fluorescence spectroscopy (FS) with Tachiya model. The binding number maximum of TRES was determined to be 8.86 at 293.15 K, 23.42 at 303.15 K and 33.94 at 313.15 K and the binding mechanism analyzed in detail. The apparent binding constants (Ka) between TRES and BSA were 5.02 × 104 (293.15 K), 8.89 × 104 (303.15 K) and 1.60 × 105 L mol−1 (313.15 K), and the binding distances (r) between TRES and BSA were 2.44, 3.01, and 3.38 nm at 293.15, 303.15, and 313.15 K, respectively. The addition of TRES to BSA solution leads to the enhancement in RLS intensity, exhibiting the formation of the aggregate in solution. The negative entropy change and enthalpy change indicated that the interaction of TRES and BSA was driven mainly by van der Waals interactions and hydrogen bonds. The process of binding was a spontaneous process in which Gibbs free energy change was negative.

Keywords

Bovine serum albuminFluorescence spectroscopyInteractionTrans-resveratrolTachiya model

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.College of Chemistry and Chemical EngineeringCentral South UniversityChangshaPeople’s Republic of China
  2. 2.Department of Nutrition, Faculty of Health and WelfareOkayama Prefectural UniversitySojaJapan
  3. 3.Institute of Applied Radiation ChemistryTechnical University of LodzLodzPoland
  4. 4.National Institute of Advanced Industrial Science and Technology (AIST)TsukubaJapan