Polyphenol composition

摘要

A polyphenol composition derived from Camellia sinensis and contains flavonol aglycones and flavonol glycosides, in a weight ratio [(B)/(A)] of the following total contents (B) to (A) is from 0.01 to 18, wherein (A) total content of the flavonol aglycones contained in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) total content of the polyphenols contained in solids of the polyphenol composition as measured by the ferrous tartrate method.

主权项

1. A process for the production of the polyphenol composition comprises:
adsorbing a Camellia sinensis extract on a synthetic adsorbent, contacting a first aqueous organic solvent solution with the synthetic adsorbent to elute a first fraction, and contacting a second aqueous organic solvent solution, which is higher in hydrophobicity than the first aqueous organic solvent solution, with the synthetic adsorbent after the elution of the first fraction, thereby eluting a second fraction with the polyphenol composition present therein wherein said polyphenol composition is derived from Camellia sinensis and comprises a flavonol aglycone and a flavonol glycosides, wherein: a weight ratio [(B)/(A)] of the total contents (B) to (A) is from 1.46 to 18: (A) is a total content of the flavonol aglycone present in solids of the polyphenol composition after hydrolysis as measured by high-performance liquid chromatography, and (B) is a total content of the polyphenol present in solids of the polyphenol composition as measured by the ferrous tartrate method.