Solid-state fermentation of wheat straw with Chaetomium cellulolyticum and Trichoderma lignorum
1981
A novel solid-state fermentation process has been developed for converting wheat straw into protein-enriched ruminant feed with a mixed culture of Chaetomium cellulolyticum or Trichoderma lignorum and Candida lipolytica. Fermentations were conducted in 3-L horizontal stirred fermentors for 7 days at 30/sup 0/C. The straw fermented with the mixed cultures contained 16 to 18% protein, compared to 12 to 14% in straw fermented with either mold alone. Cellulose degradation in the fermented straw was 33%; its in vitro rumen digestibility was 50%.
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