"Catalysis of the reaction: ferulic acid + NADPH + H+ + O2 = 5-hydroxyferulic acid + H2O + NADP+."@en . . . "moleculaire functie"@nl . . . "ferulate 5-hydroxylase activity"@en . "ferulate 5-hydroxylase activity"@en . "ferulate 5-hydroxylase activity"@en . . . . . "GO:0046424" . . .