To provide a method of manufacturing a purified product of a Pu-erh tea extract that has little color and flavor intrinsic to tea, blends well with a variety of foods and drinks, and can reduce the greasiness of food left in the mouse after eating; and a food or drink containing the same.
A method of producing a purified product of a Pu-erh tea extract includes: (1) an extraction process for obtaining an extract by adding boiled water to Pu-erh tea leaves; (2) a separation process for separating the Pu-erh tea leaves and the extract; and (3) a purification process in which one of the following processes (a) to (c) is performed: (a) a purification process for contacting the extract with an organic solvent to dissolve the extract in the organic solvent, and recovering the organic solvent fraction; (b) a purification process for cooling the extract for separation into deposits that form in the solution and non-deposits; or (c) a purification process for fractioning the extract by column chromatography according to differences in polarity, charge and molecular size.
KURONO MASAHIRO
UEDA IZUMI
KOIDE MOTONORI
SUGIURA KAZUHIKO
JUNEJA REKA RAJU
YAMAZAKI NAGAHIRO
