期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 82, 期 1, 页码 164-168出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2011.07.028
关键词
(-)-Epigallocatechin; beta-Lactoglobulin; Fluorescence spectroscopy; Interaction
类别
资金
- High-tech Industrialization Funding of Guangdong Province [2009B011300010]
- Shenzhen-Hong Kong Technology Cooperation Funding
The binding interaction between (-)-epigallocatechin (EGC) with bovine beta-lactoglobulin (beta LG) was investigated by fluorescence, circular dichroism (CD) and Fourier transform infrared (FTIR) spectroscopy methods. The binding parameters were determined by Stern-Volmer equation and the thermodynamic parameters were calculated according to the van't Hoff equation. The results suggested that beta LG was bound by EGC, which resulted in change of native conformation of beta LG. van der Waals interactions and hydrogen bonding probably played major roles in the binding process. Our study is helpful for further elucidation of binding interactions between catechins with milk proteins, which would contribute to the development of novel milk products. (C) 2011 Elsevier B.V. All rights reserved.
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