SPECIFIC POLYPHENOL USED IN FOOD AND DRINK PRODUCTS, SUPPLEMENTS, PHARMACEUTICALS, AND THE LIKE AND METHOD FOR MANUFACTURING SAID SPECIFIC POLYPHENOL

摘要

The present invention addresses the problem of providing a method for manufacturing a comparatively high-purity ≥4-mer polyphenol by precisely isolating said ≥4-mer polyphenol from a polyphenol mixture. This method for manufacturing a specific polyphenol uses a non-acid-containing eluent to isolate a ≥4-mer polyphenol from a polyphenol mixture via gel filtration fractionation, e.g. liquid chromatography or gel filtration chromatography.