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Catabolite repression of amylase synthesis in yeast
Author(s) -
Pasari Ajay B.,
Korus Roger A.,
Williams Ronald A.,
Heimsch Richard C.
Publication year - 1987
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260300306
Subject(s) - catabolite repression , fed batch culture , amylase , yeast , biomass (ecology) , food science , chemistry , biochemistry , sugar , productivity , biology , enzyme , fermentation , agronomy , macroeconomics , mutant , economics , gene
Amylase synthesis by the yeasts Saccharomycopsis fibuligera and Schwanniomyces castellii and alluvius is repressed by glucose. Steady state continuous culture data for amylase activity, E , biomass concentration, X , and reducing sugar concentration, S , were fitted to the three‐parameter catabolite repression model\documentclass{article}\pagestyle{empty}\begin{document}$ \frac{E}{X} = \frac{{[1 + a(S/X)]}}{{[1 + b(S/X)]}}, $\end{document}and biomass productivity, DX , and amylase productivity, DE , were determined for S. castellii and S. alluvius .