Several different types of continuous fermentation procedures have been developed over the years to study various aspects of the metabolism of microorganisms. The more popular of these types include:

Chemostat: The chemostat is the most simple and popular method. it is based on nutrient limitation. In chemostat fermentation, the nutrient is fed at constant rate.

Turbidostat:  In turbidostats, addition of medium to the fermenter vessel is triggered when the turbidity (and therefore the biomass) of the culture attains a certain value.

Nutristat, or auxostat: In auxostat, the nutrient feed is based on feedback control of a nutrient concentration or to hold a factor constant (e.g., pH).
 
 
 

Last modify: 05/01/2000, by Xuezhen Kang