FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (9): 242-246.

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Separation and Preparation of Epigallocatechin Gallate(EGCG)

 WANG  Xia, GAO  Li-Juan, LIN  Bing-Chang   

  1. 1.Shchool of Chemical Engineering , Anshan Science and Technology University; 2.Center of Separation Technology, Anshan Science and Technology University
  • Online:2005-09-15 Published:2011-09-20

Abstract: Separation and preparation of Epigallocatechin Gallate(EGCG) from tea polyphenols was investigated by HPLC. The EGCG was enriched after green tea polyphenols(30%) was extracted by ethyl acetate. The purity of EGCG was 60%. EGCG was Separated and purified by HPLC. The high purification solution of EGCG was collected .The solution was evaporated and freeze-dried under vacuum. Finally, the product was abtained and its purity was more than 99%.

Key words: EGCG, extraction, high performance liquid chromatography, separation and preparation