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Citation: LIU Tian-Qing, GAO Xiao-Gang. Properties of Epigallocatechin-3-Gallate in Tween 80 Micelle[J]. Acta Physico-Chimica Sinica, ;2010, 26(01): 66-72. doi: 10.3866/PKU.WHXB20100137 shu

Properties of Epigallocatechin-3-Gallate in Tween 80 Micelle

1.
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu Province, P. R. China

Received Date: 16 June 2009
Available Online: 8 December 2009

Epigallocatechin-3-gallate (EGCG) was successfully extracted from Huangshan green tea using an ion-precipitation and extraction technique. In the Tween 80/EGCG/H2O system, the critical micelle concentration of Tween 80 and the hydrodynamic radius of the Tween 80 micelles increase with increasing the EGCG concentration. As the concentration of Tween 80 increases, the intrinsic UV-Vis absorption and fluorescence intensities of EGCG increase, but the electrochemical diffusion coefficients of EGCG and Tween 80 decrease. We discuss the location of EGCG in the micelles.
- Micelle,
- Epigallocatechin-3-gallate,
- Extraction,
- Tween 80
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