Suspension Culture
Here, good results depend on optimal physical and chemical factors. To keep the cells in suspension and also to make the culture homogeneous, the medium must be suitably stirred. Stirrers range from simple magnetic stirrers, flat-blade turbine impelle Grid Method rs and marine impellers to those using pneumatic energy. e.g. airlift fermenter. Improved mixing can be achieved by changing the design of the stirrer paddle or by using multiple impellers. Stirrers mix the culture without causing damage to the cells