POLYSTYRENE - AN INERT CARRIER FOR L-GLUTAMINASE PRODUCTION BY MARINEVIBRIO-COSTICOLA UNDER SOLID-STATE FERMENTATION

Polystyrene beads, impregnated with mineral salts/glutamine medium as inert support, were used to produce L-glutaminase from Vibrio costicol a by solid-state fermentation. Maximum enzyme yield, 88 U/g substrate, was after 36 h. Glucose at 10 g/kg enhanced the enzyme yield by 66%, The support system allowed glutaminase to be recovered with higher spe cific activity and lower viscosity than when a wheat-bran system was u sed.