Carbon catabolite repression cellulase production

In defined mixed culture the substrate is pasteurized or steriUzed and inoculated simultaneously with more than one pure culture. This can be beneficial for complex substrates and where the various strains use different carbon sources. For example, mixed cultures of Trichoderma reesei or Chaetomium cel-lulolyticum with Candida lipolytica resulted in increased protein production from wheat straw because the yeast uses glucose and prevents catabolite repression of the fungal cellulase [66,67]. 

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