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Effects of failure of aeration during continuous biomass production on sulfite liquor

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Abstract

The effect of the length of the failure in stoppage aeration on the changes in the growth and physiological characteristics of aCandida utilis population grown in the chemostat was observed. During the interruption of air supply, the temporary surface aeration was used. The transient change to the oxygen-limited growth conditions induced different values and courses of the growth and physiological paramenters in the transition states.

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Abbreviations

D :

dilution rate, 1/h

qO2a :

actual cell respiration rate, mmol g−1 h−1

qO2e :

endogenous cell respiration rate, mmol g−1 h−1

RS:

concentration of reducing compounds in the medium, g/L

RSin :

concentration of reducing compounds in the feed, g/L

RNA:

intracellular content of ribonucleic acid, % (W/W)

t :

time, h

t p :

time of air supply interruption, h

X :

biomass concentration in the medium, g/L

Y X/RS :

biomass yield related to the reducing compounds consumed, g/g

τ:

time necessary to reach the original RS value for the steady state after the failure of aeration, h

μ:

specific growth rate, 1/h

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Authors and Affiliations

  1. Department of Fermentation Chemistry and Bioengineering, Institute of Chemical Technology, 166 28, Prague 6

    J. Páca

  2. Institute of Microbiology, 142 20, Prague 4

    P. Kujan

Authors
  1. J. Páca
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  2. P. Kujan
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Páca, J., Kujan, P. Effects of failure of aeration during continuous biomass production on sulfite liquor. Folia Microbiol 34, 49–57 (1989). https://doi.org/10.1007/BF02821324

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  • DOI: https://doi.org/10.1007/BF02821324

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