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Influence of pH and temperature on the substrate yield coefficient of yeast growth in a chemostat

Authors

  • V. K. Eroshin,

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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  • I. S. Utkin,

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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  • S. V. Ladynichev,

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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  • V. V. Samoylov,

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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  • V. D. Kuvshinnikov,

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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  • G. K. Skryabin

    1. Laboratory of Microbial Technology, Institute of Biochemistry and Physiology of Microorganisms, Academy of Sciences of the U.S.S.R., Pushchino on Oka, Moscow Region, U.S.S.R
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Abstract

The influence of pH and temperature on the substrate yield coefficient for growth of Saccharomyces cerevisiae in a chemostat under limited organic substrate conditions was studied.

Mathematical analysis of the substrate yield coefficient as a function of pH and temperature in the near-optimal area was made. It was shown that the location of pH and temperature optima were independent of each other. The maximum substrate yield coefficient had the following coordinates: pH = 4.1, temperature = 28.5°C.

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