Patent ID: 9420812
Filing Date: 2016-08-23
CPC Classification: A23L,A23V,B01D

Claim Text:
1. A method of making a dietary supplement, comprising: (a) providing a volume of proanthocyanidin-containing liquid feedstock; (b) passing the volume of proanthocyanidin-containing liquid feedstock to an ultrafiltration feed tank; (c) filtering a portion of the volume of liquid feedstock in the ultrafiltration feed tank through an ultrafiltration membrane system to fractionate the liquid feedstock into a proanthocyanidin-reduced permeate stream and a proanthocyanidin-enriched retentate stream; (d) collecting the proanthocyanidin-reduced permeate stream; (e) recycling the proanthocyanidin-enriched retentate stream to the ultrafiltration feed tank, to thereby form a mixture of proanthocyanidin-containing liquid feedstock and proanthocyanidin-enriched retentate stream; (f) repeating steps (c), (d), and (e), until the volume of proanthocyanidin-containing liquid feedstock is exhausted, to thereby provide a proanthocyanidin-enriched retentate; and (g) drying the proanthocyanidin-enriched retentate to provide a dried proanthocyanidin-enriched retentate and forming a dietary supplement comprising the dried proanthocyanidin-enriched retentate.