A 130 litre packed-bed bioreactor was used for pectinase production wi
th Aspergillus niger using absorbed substrate fermentation techniques.
Pectinolytic enzyme activity and relative CO2 production were used as
indicators of metabolic activity. absorbed substrate fermentation is
an efficient process for pectinase production and is also an interesti
ng model because the culture medium, water, nutrients and specific ind
ucers, can be designed at the desired concentrations.