The mixing and heat transfer phenomena within rotating drum bioreactors (RDBs) used for solid-state fermentation processes are poorly studied. The potential for the establishment of axial temperature gradients within the substrate bed was explored using a heat transfer model. For growth of Aspergill
Solid-state fermentation of sweet sorghum to ethanol in a rotary-drum fermentor
β Scribed by Fikret Kargi; James A. Curme
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 309 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0006-3592
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## Abstract A previously published twoβdimensional discrete particle simulation model for radial mixing behavior of various slowly rotating drums for solidβstate fermentation (SSF) has been extended to a threeβdimensional model that also predicts axial mixing. Radial and axial mixing characteristic
The development of large-scale solid-state fermentation (SSF) processes is hampered by the lack of simple tools for the design of SSF bioreactors. The use of semifundamental mathematical models to design and operate SSF bioreactors can be complex. In this work, dimensionless design factors are used
Membrane overcultures of Rhizopus oligosporus were shifted from 37 to 50Β°C for 10 h and then re- turned to 37Β°C, mimicking the temporal temperature profiles which typically occur in SSF due to heat transfer limitations. Analysis with a modified two-phase growth model suggests that the temperature up