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《Journal of Tea Science》 2001-01
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Separation of Tea Catechin Oxy polymers by High Performance Liquid Chromatography

LI Chun mei, XIE Bi jun [WT6BX](Department of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China)  
Tea catechin oxy polymers were obtained by oxidizing tea catechin with H 2O 2 and their isolation conditions of HPLC were studied MS showed that their molecular weight range from 906 4 to 1962 4, which suggested that they might be dimer to pentamer of EGCG; Isocratic and linear gradient elution could not separate them from each other, but a method of combining linear and step gradients elution could separate them from each other This HPLC method might provide a new way to separate oxy polymers of catechin
【CateGory Index】: O657.7
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