METHOD FOR EXTRACTING FERULIC ACID AND/OR SALTS OF SAME.

摘要

The invention relates to a method for extracting ferulic acid and/or salts of same, from a previously conditioned source rich in ferulic acid and salts of same, comprising: adsorbing the ferulic acid and/or the salts thereof in a column filled with synthetic resin; desorbing the ferulic acid and/or salts of same with an organic solvent; separating the liquor rich in ferulic acid into two fractions according to the water content thereof; concentrating the two fractions of liquor separately; mixing and concentrating said fractions; adding two volumes of water thereto; concentrating the mixture obtained; separating the insoluble impurities by sedimentation; pre-crystallising the ferulic acid and/or salts of same with a synthetic purification resin; crystallising the ferulic acid and/or the salts thereof; separating the ferulic acid and/or the salts thereof from the crystallisation mother liquor; and drying and sifting same.