Two different cell wall anchored ß-fructosidases of L. paracasei were purified. Enhanced production of ß-fructosidases was achieved by pH maintenance at 5.5. Protein disturbances after the second Big3 domain lead to ß-fructosidases truncation. The simultaneous utilization of starch/inulin substrates was proved by RT-PCR. Amy1 and inu genes are under common expression control in L. paracasei.