Abstract
A four stage process for the continuous citric acid production with recirculation of the fermentation broth has been created. The process consists of the fermentation stage, extraction stage, reextraction stage and the product stage. In the present paper only the results of the fermentation stage are presented. The fermentations have been carried out in a reciprocating-jet-bioreactor with the fungi Aspergillus niger. The influence of the nitrogen concentration in the influent, the age of the fungi and a strong dilution of the biosuspension are discussed in this paper.
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Received: 4 February 1997
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Wieczorek, S., Brauer, H. Continuous production of citric acid with recirculation of the fermentation broth after product recovery . Bioprocess Engineering 18, 1–5 (1997). https://doi.org/10.1007/s004490050403
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DOI: https://doi.org/10.1007/s004490050403