Method of preparing a composition comprising ferulic acid

Method of preparing a composition comprising ferulic acid, the method comprising the steps of:

• forming a bran mixture comprising bran and water, the mixture having a water content of at least 50 wt. % and comprising from 1 to 50% by weight of bran;
• heating the bran mixture to a temperature of between 75 and 150° C.;
• cooling the bran mixture to below 50° C.;
• and
• subjecting the bran mixture to an enzymatic treatment comprising contacting the bran mixture with a carbohydrase and a feruloyl esterase.