Applied Biochemistry and Biotechnology

, Volume 27, Issue 1, pp 9–25 | Cite as

Influence of cultivation conditions on the production of cellulolytic enzymes withTrichoderma reesei Rutgers C30 in aqueous two-phase systems

  • Ingrid Persson
  • Folke Tjerneld
  • Bärbel Hähn-Hagerdal


Cellulolytic enzyme production in aqueous two-phase systems withTrichoderma reesei Rutgers C30 has been investigated. The influ ence of different phase systems, as well as addition of media compo nents and substrate on enzyme production have been studied. Extractive enzyme production in fed-batch cultivations was per formed in a phase system composed of PEG 8000 5%-Dextran T500 7% with 1% Solka-Floc BW 200 as substrate. The cellulolytic enzyme system was intermittently withdrawn with the top phase. Addition of media components every 24 h and cellulose every 72 h gave an aver age enzyme activity in the withdrawn top phase of 2.2 FPU/mL dur ing 170 h cultivation. The corresponding productivity was 18 FPU/lh. The productivity was increased to 24 FPU/l.h when media compo nents and cellulose were added every 72 h. The average enzyme con centration was then 1.6 FPU/mL. The results are discussed in relation to methods for cellulolytic enzyme production involving immobiliza tion and cell recycling.

Index Entries

Cellulolytic enzymes aqueous two-phase systems Trichoderma reesei cellulose production 


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Copyright information

© Humana Press Inc. 1991

Authors and Affiliations

  • Ingrid Persson
    • 1
  • Folke Tjerneld
    • 1
  • Bärbel Hähn-Hagerdal
    • 2
  1. 1.Department of BiochemistryChemical Center, Lund UniversityLundSweden
  2. 2.Department of Applied MicrobiologyChemical Center, Lund UniversityLundSweden

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