The effect of growth factors on anoxic chemostat cultures of two Saccharomyces cerevisiae strains

被引:0
作者
S.H. de Kock
J.C. du Preez
S.G. Kilian
机构
[1] University of the Free State,Department of Microbiology and Biochemistry
[2] P.O. Box,undefined
来源
Biotechnology Letters | 2001年 / 23卷
关键词
anoxic; chemostat; kinetics; vitamins;
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摘要
In anoxic chemostat cultures of Saccharomyces cerevisiae ATCC 4126 and CBS 8066 grown in a medium containing yeast extract, a sharp increase in the steady-state residual glucose concentration occurred at relatively low dilution rates, contrary to the expected Monod kinetics. However, supplementation with vitamins and amino acids facilitated efficient glucose uptake. This enhanced requirement for growth factors under anoxic conditions and at high growth rates could explain the exceptionally high apparent ks values for S. cerevisiae reported in the literature.
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页码:957 / 962
页数:5
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