Cellulase production by locally isolated trichoderma species

ABSTRACT

Production of cellulases by four different locally isolated species belonging to the genus Trichoderma was studied. The organisms were grown in a mineral salt medium containing 1% glucose, CMC, filter paper or Avicel in shake flasks. The order of cellulase productivity of the four species was T. harzianum > T. longibrachiatum > T. hamatum > T. piluliferum. The induction effect of different carbon sources was Avicel > filter paper > CMC > glucose for all the species. In the medium containing 1% Avicel T. harzianum produced 74.6, 11.5, 3.2 and 11.3 U of CMCase, avicelase, FPase and salicinase, respectively per 100 ml of the culture medium