Abstract
Solid-phase fermentation has been found to have a much higher productivity than the popular liquid submerged fermentation in producing cellulase enzymes. The highest reported productivity in the literature for cellulases by Trichoderma cultures in submerged fermentation is 158 filter paper units (FPU)/(h·L) of fermenting liquid. From preliminary experiments of solid-phase fermentation in 1000-m L flasks, a productivity of 234 FPU of cellulases/(h·L) of solid-bed volume was obtained. When two novel techniques—pressure pulsation and repeated extraction—were applied, a productivity of 806 FPU/(h·L) was achieved. The same techniques also greatly enhanced the productivity of other enzymes by fungal cultures in solid-phase fermentation.
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Tsao, G.T., Gong, C.S. & Cao, N.J. Repeated solid-phase fermentation and extraction for enzyme production. Appl Biochem Biotechnol 84, 505–524 (2000). https://doi.org/10.1385/ABAB:84-86:1-9:505
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DOI: https://doi.org/10.1385/ABAB:84-86:1-9:505