| abstract |
The method according to the invention relates to a method of obtaining a tea pigment comprising theaflavin, thearubigin, theabrownin and catechins, characterised by (1) mixing tea leaves and ethanol, soaking and refluxing the obtained suspension; (2) centrifuging the suspension and discarding the pellet; (3) adding the remaining samples to a gel filtration column, washing the column; and (4) collecting the washing solution, extracting the tea pigment using a halogenated hydrocarbon having 1-3 carbon atoms, discarding the water phase, evaporating the halogenated hydrocarbon, and recovering a tea pigment powder containing less impurities and showing higher efficacy. The extraction product is applicable in the field of applications against hyperlipidemia and related diseases. |