tCorn bran contains a high amount of ferulic acid. However, the separation and purification of ferulic acid from cornbran still encounter technical problems. In this research, ferulic acid was obtained from corn bran via membraneseparation from hydrolysate treated with an alkaline-ethanol aqueous solution. The technology was optimised asfollows. One weight of corn bran was extracted using 0.25 mol/L NaOH in 50% ethanol aqueous solution at 75◦C for2 h. Filtrates were ultrafiltrated at room temperature using a membrane with 5000 Da molecular cut-off. Permeateswith 91.8% recovery of ferulic acid were concentrated by nanofiltration using a membrane with 150 Da molecularcut-off. Ferulic acid crystal (8.47 g/kg corn bran) with 84.45% purity was obtained after the pH of the concentrate wasadjusted to 2.0. The reducing sugars released from the alkaline-hydrolysed residue increased by 54.5% comparedwith the untreated corn bran after xylanase hydrolysis for 8 h.