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Contribution of inorganic and organic ions to conductivity changes during lactic acid fermentation

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Abstract

On-line estimation of lactic acid produced by Lactobacillus casei in a pilot scale reactor coupled with a microfiltration module is performed by measuring the conductance on the permeate effluent. Non-interference by other ions (inorganic and organic) present in the medium has been verified. This method is found more reliable that the estimation of lactate concentration from the amount of alkaline solution supplied for the pH control.

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Authors and Affiliations

  1. Laboratoire des Sciences du Génie Chimique, CNRS-ENSIC-ENSAIA-INPL, BP 451, F-54001, Nancy Cedex, France

    L. Belfares, S. Altaba, M. N. Pons, J. M. Engasser & M. Fick

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  1. L. Belfares
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  2. S. Altaba
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  3. M. N. Pons
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  4. J. M. Engasser
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  5. M. Fick
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Belfares, L., Altaba, S., Pons, M.N. et al. Contribution of inorganic and organic ions to conductivity changes during lactic acid fermentation. Bioprocess Engineering 9, 197–204 (1993). https://doi.org/10.1007/BF00369403

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  • DOI: https://doi.org/10.1007/BF00369403

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