Patent ID: 7959963

Claim:
A method to produce an antioxidant grape extract exhibiting an ORAC value of at least 10,000 μmol TE/g, the method including the following steps: (a) drying grape material including at least one of (i) grape fruit, (ii) grape skin, and (iii) grape seed; (b) creating an active crude grape extract solution that includes polyphenols and monomeric phenols by dissolving dried said grape material in ethanol; (c) running at least a portion of said solution created at step (b) through a macroporous absorption resin that absorbs substantially amounts of said active crude grape extract from said portion of said solution while passing substantially unabsorbed inactive ingredients and impurities; (d) at least a first washing of said macroporous absorption resin in ethanol having concentration less than 30% by volume, and a second washing in ethanol having a concentration at least 50% by volume, to obtain from said macroporous absorption resin active crude grape extract absorbed during step (c); and (e) refining, at least once, active crude grape extract obtained at step (d) using a separation resin to at least partially isolate different active ingredients in said active crude grape extract, and washing said separation resin in ethanol having a concentration ranging from about 15% to about 45% by volume to collect an extract solution containing polyphenols with a concentration about 70% to about 95% by weight and containing monomeric phenols with a concentration of about 10% to about 45% by weight, to obtain said antioxidant grape extract exhibiting an ORAC value of at least 10,000 μmol TE/g.