A novel solid-state fermentation method using polyurethane foam as ine
rt carrier impregnated with a synthetic liquid medium was developed si
mulating the nutritional composition and culture conditions of solid-s
tate fermentation on wheat bran. With this system, biomass, the import
ant parameter involved in solid-state fermentation processes, can be m
easured directly. Some other superiorities of this system over convent
ional solid-state fermentation systems are discussed.