Batch fermentation has several problems including low cell
density, nutrient limitations, low reactor productivity and product
inhibition, which in turn create problems in commercial applications. Continuous fermentation method is the most appropriate
to overcome these problems, to reduce production cost and improve process efficiency with ethanol yield. Continuous alcoholic
fermentation using flocculent yeast has been already employed
in industrial units in several ethanol producing regions. Based on
the available literature, it is evident to have a continuous process
without the need for cell recycling to achieve maximum savings
on ethanol production by fermentation