Influence of growth rate on the accumulation of ergosterol in yeast-cells in a phosphate limited continuous culture
1991
The influence of the growth rate on the accumulation of ergosterol in Saccharomyces cerevisiae was studied with glucose and ethanol as substrates under P-limitation in chemostat experiments. In cultures with glucose as carbon source a decrease in ergosterol content with dilution rates up to 0.08 h-1 was observed, whereas above this dilution rate an increase in ergosterol content occurred. Similar but less marked effects were attained with ethanol as carbon source. A maximum specific rate of ergosterol synthesis of about 2.4 mg per h and g dry cell mass was calculated for phosphorus limited cultures.
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