The presence of readily metabolizable carbon sources like glucose, cellobiose, xylobiose, or xylose represses the synthesis of xylanase enzymes for the utilization of certain carbon sources such as xylan or cellulose and the process is known as catabolite repression
As Schizochytrium is a slow growing heterotroph consuming glucose at a slow rate, wai cultivation in a non carbon catabolite repression
condition or in an increased acetyl-CoA synthethase state gives rise to higher growth and glucose consumption rates (27).
This phenomenon is known as nitrogen catabolite repression
In addition, the use of SSF for enzyme production has many advantages over submerged fermentation due to its simple technique, low capital investment, lower levels of catabolite repression
and better product recovery (Considine et al.
Furthermore, pseudo-continuous fermentation in the co-culture system allows us to use a wide range of dilution rates and to prevent the diauxic kinetics caused by the xylose catabolite repression
associated with S.
Although the strain showed a high-level tolerance to 2dg, FFH production was still under catabolite repression
Below 25[degrees]C enzyme activity was less due to inappropriate incubation temperature for yeast growth, and at high temperature results in less enzyme production due to catabolite repression
of enzyme (Gomez et al.
This study documents catabolite repression
of prodigiosin synthesis, motility, and antibiotic susceptibility properties based upon different sugar supplemented growth conditions using S.
The influence of nitrate and nitrite reduction on catabolite repression
in Escherichia coli.
Key words: Penicillium brevicompactum, Glucose, Catabolite repression
, a-amylase, SSF.
The decreased activity in the later phase of growth was probably due to catabolite repression
by glucose released from starch hydrolysis.
Enzyme production regulation is influenced by catabolite repression