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Figure 5. Effect of
different inoculum size on citric acid production by Aspergillus niger
GCBT7. All the fermentations were
carried out at 30ºC following growth on 150 g/l initial sugar concentration.
The initial pH of the molasses medium was kept constant at 6.0 throughout
the fermentation period of 6-days. Yx/s = g cells/g substrate utilized,
Qp = g citric acid produced/l/h, Qs = g substrate consumed/l/h, qp = g
citric acid produced/g cells/h.
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