Abstract
The measurement of pressure drop (DP) across an aerated fermentation bed was used to follow Aspergillus niger growth on Amberlite IRA-900, a synthetic resin, imbibed with a solution containing high concentrations of sucrose (Si=100, 200, 300 and 400 g l−1). The DP allowed monitoring the germination, vegetative growth, limitation and sporulation for the four concentrations studied A relation between the biomass and the relative intrinsic permeability established that the continuity of the gas phase was not broken and a regular mesh-like growth occurred Relative intrinsic permeability as low as 0.0125 occurred at biomass concentrations of 103 mg dry biomass (g dry support)−1 obtained with Si=400 g l−1. Under these conditions the mold occupies 34% of the free space. The DP measurement was used to follow growth on cane bagasse and wheat bran, in both cases, the four growth phases (germination, vegetative, substrate limitation, and sporulation) were monitored.
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© 1994 Springer Science+Business Media Dordrecht
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Auria, R., Revah, S. (1994). Pressure Drop as a Method to Evaluate Mold Growth in Solid State Fermentors. In: Galindo, E., Ramírez, O.T. (eds) Advances in Bioprocess Engineering. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0641-4_40
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DOI: https://doi.org/10.1007/978-94-017-0641-4_40
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