Involved in degradation of plant cell walls. Hydrolyzes the feruloyl-arabinose ester bond in arabinoxylans, and the feruloyl-galactose and feruloyl-arabinose ester bonds in pectin. Binds strongly to cellulose. feruloyl-polysaccharide + H2O = ferulate + polysaccharide. Inhibited by the specific serine esterase inhibitor AEBSF. Repressed by glucose, probably via the carbon catabolite repressor protein CreA. Glycosylated. Belongs to the carbohydrate esterase 1 (CE1) family. Feruloyl esterase type B subfamily.