R. C. Nabais

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The addition of Ca (as CaCl(2)) in optimal concentrations (0.75 to 2.0 mM) to a fermentation medium with a trace contaminating concentration of Ca (0.025 mM) led to the rapid production of higher concentrations of ethanol by Saccharomyces cerevisiae, Saccharomyces bayanus, and Kluyveromyces marxianus. The positive effect of calcium supplementation (0.75 mM)(More)
Ethanol-induced death rate was higher for cells ofSaccharomyces bayanus orKluyveromyces marxianus in spanse suspensions (2×104 cells/ml) compared with dense suspensions (2×105–2×107 cells/ml). Specific death rates of sparse suspensions decreased to values similar to dense suspensions if ethanol-induced death experiments were undertaken in the media obtained(More)
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