What is solid-state fermentation method?
Solid state fermentation (SSF) is defined as the cultivation process in which microorganisms grow on solid materials without the presence of free liquid.
What is tray bioreactor?
The tray bioreactor is the most widely used bioreactor for SSF. Using trays is the oldest system, and they are very simple in design and used in static conditions—unmixed beds with no forced aeration on the solid substrate. The fermentation is done in stationary trays with no mechanical agitation.
What are the advantages and disadvantages of solid-state fermentation?
Introduction
| No | Solid State Fermentation Disadvantage |
|---|---|
| 1 | Engineering problems due to the build-up of temperature, pH control, oxygen transfer, mass and heat transfer, substrate and moisture gradients |
| 2 | Uneven distribution of the cell mass, nutrients, temperature, pH, moisture content |
Which is one of the applications of solid-state fermentation?
Solid state fermentation is currently used in a range of applications including classical applications, such as enzyme or antibiotic production, recently developed products, such as bioactive compounds and organic acids, new trends regarding bioethanol and biodiesel as sources of alternative energy, and biosurfactant …
What is rotary drum bioreactor?
rotating-drum bioreactors comprise a horizontally rotating drum, that may or may not have a paddle mixer and rotates slowly for proper mixing of fermentation substrate. For scaling-up purposes, many assumptions need to be made concerning the rotating- drum bioreactors (Fig. 1).
What are advantages of solid state fermentation?
Although less employed at an industrial level, SSF is recognized to commonly offer a series of advantages over submerged (or liquid) fermentation (SmF), such as higher yields and productivities, extended stability of products, lower production cost, lower protein breakdown (which is especially important if an enzyme is …
What are the significant disadvantages of solid state fermentation?
Disadvantages of Solid State Fermentation Ø Scale-up of the fermentation process is difficult. Ø Fermentation usually produces excessive heat in the medium. Ø The environmental conditions of the microbes cannot be regulated in SSF. Ø Bacterial contamination sometimes problematic.