Patent ID: 8075929
Filing Date: 2011-12-13
Classification: A23L,A23V,A61K,A61P

Abstract:
1. A process for making a polyphenol extract from grapes comprising the steps of: (1) contacting a member selected from the group consisting of whole grapes, grape seeds, grape pomace, and mixtures thereof with water at an elevated temperature to obtain a crude grape-water extract; (2) treating the crude grape-water extract with a tannase enzyme at an elevated temperature to obtain a polyphenol grape extract; (3) acidifying the polyphenol grape extract to a pH of about 1.5 to 2.5 to obtain an acidified polyphenol extract; (4) cooling the acidified polyphenol extract; and (5) filtering the cooled acidified polyphenol extract to obtain a filtered polyphenol extract.