Patent ID: 8747931

Claim:
A method of processing an amount of bran, comprising the steps of: providing an amount of bran; fluidicly engaging an amount of supercritical carbon dioxide with said amount of bran in a bran extraction zone, wherein said amount of supercritical carbon dioxide has a temperature in a range of about 85° C. and about 130° C., and wherein said amount of supercritical carbon dioxide has a pressure in a range of about 7,000 psi to about 14,000 psi; extracting an amount of bran extraction material from said amount of bran into said amount of supercritical carbon dioxide having said temperature in said range of about 85° C. and about 130° C. and said pressure in said range of about 7,000 psi to about 14,000 psi; transferring said amount of supercritical carbon dioxide containing said amount of bran extraction material to a first bran extraction material separation zone having a temperature in the range of about 60° C. and about 110° C. and a pressure in the range of about 2900 psi to about 5800 psi to achieve a density of said supercritical carbon dioxide of about 0.5 g/mL to about 0.9 g/mL; and separating a first fraction from said amount supercritical carbon dioxide containing said amount of bran extraction material, said first fraction being an oryzanol fraction which leaves remaining constituents of said bran extraction material contained in said amount of supercritical carbon dioxide.