Chinese Journal of Applied Chemistry ›› 2009, Vol. 26 ›› Issue (08): 918-922.

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Spectroscopic Study on the Interaction between Diammonium Glycyrrhizinate and Bovine Serum Albumin

YUAN Dao-Qin, FENG Su-Ling*, CUI Feng-Ling   

  1. (College of Chemistry and Environmental Science,Henan Normal University,Xinxiang 453007)
  • Received:2008-07-23 Revised:2008-10-06 Published:2009-08-10 Online:2009-08-10

Abstract:

The interaction between diammonium glycyrrhizinate and bovine serum albumin was studied in physicological solution by spectroscopic methods including fluorescence spectra and UV–visible absorption spectra. Synchronous fluorescence and three-dimensional fluorescence spectra were used to investigate the conformation change of bovine serum albumin due to the addition of diammonium glycyrrhizinate. It showed that the dynamic quenching exited between diammonium glycyrrhizinate and bovine serum albumin. Based on the equation of Stern-Volmer, the quenching constant was obtained. According to Förster theory of non-radiation energy transfer, the distance between bovine serum albumin and diammonium glycyrrhizinate was determined.

Key words: diammonium glycyrrhizinate, bovine serum albumin, fluorescence spectra, absorption spectra, synchronous fluorescence, three-dimensional fluorescence spectra

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