ABSTRACT
Solid-state fermentation (SSF) may be defined as a technique of cultivating micro organ isms on and inside humidified particles (solid substrate). e liquid content, bound with this solid matrix, is maintained at the level corresponding to the water activity, assuring correct growth and metabolism of cells, but should not exceed the maximum water-holding capacity of the solid matrix (Singhania et al., 2009). e solid matrix is either the source of nutrients or simply a support impregnated by the proper nutrients. SSF has many advantages over liquid-state fermentation (LSF): lower energy requirements, producing
1.3.2.2 Forcefully-Aerated Bioreactors without Mixing 13
1.3.2.3 Unforced Aeration Bioreactors with Continuous or Intermittent Mixing 14
1.3.2.4 Forcefully-Aerated Bioreactors with Continuous or Intermittent Mixing 15
1.3.3 Modeling in SSF 16 1.3.3.1 Modeling of Heat and Mass Transfer 16 1.3.3.2 Modeling of Cell Growth 17
1.3.4 SSF Products 20 1.4 Future Trends 20
1.4.1 Intensive Study of the SSF Mechanism 20 1.4.1.1 Establishment of a Kinetic Model 20 1.4.1.2 Mass Balance and Energy Balance 23
1.4.2 Control Technology 23 1.4.2.1 Design of Solid-State Fermentation
Reactor Devices 23 1.4.2.2 Strategy of Controlling Parameters 24
1.4.3 Application 24 1.4.3.1 Bioremediation 24 1.4.3.2 Biological Pulp 24 1.4.3.3 Biofuel 25
References 25
lesser wastewater, environmentally friendly process, etc. Nearly all the fermentation products in ancient times were derived from SSF.
