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Effect of pH and CO2 concentration changes on lipids and fatty acids of Saccharomyces cerevisiae


The lipid composition of S. cerevisiae cells was studied in different conditions of pH and of HCO3 - and CO2 concentration.

Increasing the concentration of CO2 in the broth determines an increase of total lipids, of total fatty acids, and of the relative amount of unsaturated fatty acids.

Changing the concentration of bicarbonates at constant pCO2 does not affect the lipid composition of the cells. Also pH changes do not have significant effects.

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Castelli, A., Littarru, G.P. & Barbaresi, G. Effect of pH and CO2 concentration changes on lipids and fatty acids of Saccharomyces cerevisiae . Archiv. Mikrobiol. 66, 34–39 (1969).

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  • Lipid
  • Bicarbonate
  • HCO3
  • Saccharomyces Cerevisiae
  • Saccharomyces