Solid Fermentation Research Paper

1) Solid Fermentation: In 1935 solid fermentation was carried out by Cohn. This method has not drawn much attention mainly because it is labor intensive. In this process, fermentation medium is impregnated into porous solid material such as sugar cane bagasse, potato and beet pulp etc. After sterilization this solid material is inoculated with suspension of microorganisms and it is kept under the required environmental condition for the growth on production of desired product. After completion of fermentation process the mesh was extracted with water and processed for the determination and extraction of specific product. Similarly work has been reported from different scientists for production of xylanase by solid state fermentation using

In this fermentation process, culture medium is used either semi solid or liquid in nature. Submerge fermentation is easier and higher productive method in comparison to surface fermentation. Isolation of the desired product from the submerged fermentation is easier, low cost process in comparison to surface fermentation. The isolation of desired product from surface fermentation is difficult, time consuming and costly process to submerge fermentation, mycelia can be separate from both easily through extraction with ethanol. And in surface fermentation again and again extraction with ethanol. In submerged fermentation all optimized conditions can be controlled such as temperature, pH and oxygen supply, while in surface fermentation is difficult to control the optimized conditions. The chances of contamination in surface fermentation are more than submerged fermentation. Similarly work has been reported from different scientists for production of xylanase by Sub merged fermentation using Bacillus circulans D1 in submerge fermentation (Bocchini, et al., 2005).
4) Surface fermentation: Surface fermentation microorganisms grow on the surface of culture medium while in this type of fermentation agitation is not necessary. Surface fermentation is carried out in liquid, semi-solid and solid culture medium. The most efficient fermentation is carried out in tray at industrial level. The sterilized air is passed in the room to keep room in sterilized condition and in surface fermentation pH cannot be controlled. Similarly work has been reported from different scientists for production of xylanase by surface fermentation using Melanocarpus albomyces IIS68 (Roy, I. et al.,