Fig. 23.9. Predictions made by the model of a rotating drum without axial mixing, for the growth of Aspergillus oryzae on wheat bran in a 0.85 m long drum (Mitchell et al. 2002a).

(a) Axial profiles for (---) concentration of water vapor in the headspace; (—) biomass within the substrate bed; (b) Axial substrate temperature profiles at (---) 5 h, (----)

10 h, and (---) 20 h and (-) headspace gas temperature profile at 20 h. Reproduced from Mitchell et al. (2002a) with kind permission from John Wiley & Sons, Inc.

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