Abstract
A general equation is proposed to evaluate the absolute error that affects the maximum specific growth rate calculated from batch or continuous experiments. This error depends on the relative errors of the cell concentration measurements and on the duration of the test.
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Abbreviations
- X 1 :
-
Cell concentration at the beginning of the exponential growth phase or of the washing-out period
- X′ 1 :
-
Lowest value of X 1 due to experimental errors
- X″ 1 :
-
Highest value of X 1 due to experimental errors
- X 2 :
-
Cell concentration at the end of the exponential growth phse or of the washing-out period
- X′ 2 :
-
Lowest value of X 2 due to experimental errors
- X″ 2 :
-
Highest value of X 2 due to experiment errors
- α:
-
Relative error that affects X 1
- β:
-
Relative error that affects X 2
- Δt :
-
Exponential growth stage or washing-out duration
- Δμ:
-
Asolute error that affects μ
- μ:
-
Maximum specific growth rate
- μ1 :
-
Lowest value of μ due to experimental errors
- μ2 :
-
Highest value of μ due to experimental errors
References
Borzani, W. 1980 Evaluation of the error that affects the value of the maximum specific growth rate. Journal of Fermentation Technology 58, 299–300.
Hiss, H. 1979 Cultivo descontíuo de Candida guilliermondii em meio contendo óleo diesel como principal fonte de carbono. PhD Thesis, University of São Paulo, São Paulo, Brazil.
Additional information
The author is with the Instituto Mauá de Technologia, Estrada das Lágrimas 2035, 09580-900, São Caetano do Sul, SP, Brazil
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Borzani, W. A general equation for the evaluation of the error that affects the value of the maximum specific growth rate. World J Microbiol Biotechnol 10, 475–476 (1994). https://doi.org/10.1007/BF00144476
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DOI: https://doi.org/10.1007/BF00144476