Fig. 7
From: Effect of bacteria type and sucrose concentration on levan yield and its molecular weight
Schematic vision of method proposed. In Gram negative bacteria, sucrose and products are imbibed in periplasmic space, and there is mass transfer opposition for go away to culture broth. This fact does not occur with Gram positive bacteria, where enzyme is directly in contact with culture broth. M membrane, IM inner membrane, OM outer membrane, PW peptidoglycan wall, LS levansucrase