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Monitoring of volatiles in alcoholic fermentations on molasses via a gas membrane sensor

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Summary

Gas membrane sensors, connected to a gas chromatography, have been tested in fermentation on complex media of industrial interest. Selectivity, sensitivity and reliability have been assessed: the calibration on fermentation medium is recommended. The use of such a sensor is demonstrated in the study of the kinetics of batch and fed-batch alcoholic fermentations on beet molasses. The kinetics of acetaldehyde are especially pointed out in relation to ethanol, fusel alcohols and carbon dioxide production.

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Authors and Affiliations

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

    Anne Groboillot, Marie-Noëlle Pons & Jean-Marc Engasser

Authors
  1. Anne Groboillot
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  2. Marie-Noëlle Pons
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  3. Jean-Marc Engasser
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Offprint requests to: M.-N. Pons

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Groboillot, A., Pons, MN. & Engasser, JM. Monitoring of volatiles in alcoholic fermentations on molasses via a gas membrane sensor. Appl Microbiol Biotechnol 32, 37–44 (1989). https://doi.org/10.1007/BF00164820

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  • DOI: https://doi.org/10.1007/BF00164820

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