Summary
A strain of Streptococcus cremoris has been fermented on glucose at a fixed pH and temperature in a chemostat.
A model for lactic acid production is suggested which fits the experimental data from the chemostat better than previously proposed models. The model is a modification of the original Luedeking-Piret expression including a term with negative substrate dependence.
Similar content being viewed by others
References
Aborhey S, Williamson D (1977) Modelling of lactic acid production by Streptococcus cremoris HP. J Gen Appl Microbiol 23:297–315
Colorimetric methods of analysis (1967) Snell and Snell. D van Nostrand Co, Inc, NY, Vol IIIa
Friedman MR, Gaden EM, Jr (1970) Growth and lactic acid production by Lactobacillus delbrueckii in a dialyse culture system. Biotechnol Bioeng 12:1465–1467
Hansson TP, Tsao GT (1972) Kinetic studies of the lactic acid fermentation in batch and continuous cultures. Biotechnol Bioeng 14:233–252
Luedeking R, Piret EL (1959) A kinetic study of the lactic acid fermentation. J Biochem Microbiol Technol Eng 1:300–402
Luedeking R, Piret EL (1959) Transient and steady states in continuous fermentation. J Biochem Microbiol Technol 1:431–459
Rogers PL, Bramall L, McDonald IJ (1978) Kinetic analysis of batch and continuous culture of Streptococcus cremoris HP. Can J Microbiol 24:372–380
Stieber RW, Gerhardt P (1979) Dialysis continuous process for ammonium lactate fermentation: Improved mathematical model and use of deproteinized whey. Appl Envir Microbiol 37:487–495
Thomas TD, Ellwood DC, Longyear VMC (1979) Change from homo- to hetero-lactic fermentation by Streptococcus lactis resulting from glucose limitation in anaerobic chemostat culture. J Bact 138:109–117
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jørgensen, M.H., Nikolajsen, K. Mathematic model for lactic acid formation with Streptococcus cremoris from glucose. Appl Microbiol Biotechnol 25, 313–316 (1987). https://doi.org/10.1007/BF00252539
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00252539