Production of biomass (viable cellular material)
Production of extracellular metabolites (chemical compounds)
Production of animate thing elements (enzymes and different proteins)
Transformation of substrate (in that the reworked substrate is itself the product) [3],
These sorts aren't essentially disjoint from one another; however offer a framework for understanding the variations in approach. The organisms used are also microorganism, yeasts, molds, animal cells, or plant cells. Special issues square measure needed for the particular organisms utilized in the fermentation, like the dissolved element level, nutrient levels, and temperature [4].