“…Microfiltration (MF) is one of the oldest membrane technologies [ 1 ], which is characterized by operating pressure lower than 0.35 MPa and high permeate fluxes, mainly between 10 −4 and 10 −2 m/s [ 2 ]. Over the last two decades, many attempts have been made by researchers to comprehensively investigate the use of MF in the clarification of fermentation broths [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] and yeast suspensions [ 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 ]. It is due to the fact that separation of biological materials using conventional centrifugal methods is difficult and expensive [ 33 ].…”