| abstract |
PROBLEM TO BE SOLVED: To provide a ferulic acid extraction method capable of easily extracting ferulic acid from rice bran. An ethanol treatment process in which ethanol is added to rice bran and shaken, a primary filtration process for filtering a treatment liquid obtained in the ethanol treatment process, and a residue obtained in the primary filtration process A thermal drying process for drying the liquid, an enzyme treatment process for suspending a treatment product obtained in the thermal drying process using a solution containing an enzyme preparation, and a suspension obtained in the enzyme treatment process A secondary filtration treatment process for filtering the liquid, and a lyophilization treatment process for freeze-drying an extract mainly containing ferulic acid obtained in the secondary filtration treatment process. Extraction method. |