| Abstract: | Corn cobs were treated at room temperature with NaOH at a ratio of 100:3 (w/w), but with different volumes of water from 3 to 0.25 ml/g corn cob. The biomasses obtained from a mixture culture of Cellulomonas sp. and Bacillus subtilis under each condition were similar (5.5 to 6.0 g/l) and protein only varied between 30% and 40% (w/w biomass) or 1.9 and 2.2 g/l. Low volumes and low amounts of NaOH can therefore be used in a cost-effective manner.N. Pece is with the Cátedra de Quimica Orgánica, Universidad Nacional de Santiago del Estero, Argentina. N. Perotti and O. Molina are with the Cátedra de Microbiologia Industrial, Universidad Nacional de Tucumán, y PROIMI,  Planta Piloto de Procesos Industriales Microbiológicos, Av. Belgrano y Pje Caseros, 4000 Tucumán, Argentina |
