“…The use of adsorbed yeast cells for the continuous production of beer was first attempted in 1899 by Barbet. Recently, a number of studies have been published on the production of beer by batch fermentation with immobilized cells on polyethylene film (Kolpakchi et al, 1976), ceramic or polyethylene rings (Kolpakchi et al, 1980), alginate gel (Pardonova et al, 1982), and hollow PVA gel beads (Shindo et al, 1990). Also, a number of studies have been published on brewing by continuous fermentation with immobilized yeast cells on PVC and porous bricks (Corrieu et al, 1976;Navarro et al, 1976), diatoms, PVC and plastic (Moll, 1977), pieces of brick (Moll and Duteurtre, 1979), Ca alginates (Godtfredsen et al, 1981;Linko and Linko, 1981;Onaka et al, 1985), and ceramics (Nakanishi et al, 1989).…”