| Abstract: | Thermostable cellulase was produced by Streptomyces sp. T3-1 grown in a 50-l fermenter. Maximum cellulase activity was attained on the fourth day when agitation speeds and aeration rates were controlled at 300 rpm and 0.75 vvm, respectively. Maximum enzyme activities were: 148 IU CMCase ml–1, 45 IU Avicelase ml–1, and 137 IU  -glucosidase ml–1 with productivity of 326 IU l–1 h–1, which were 10--32% higher than the values obtained in shake-flask culturesRevisions requested 12 October 2004/1 November 2004; Received received 1 November 2004/14 December 2004 |
