Importance of medium pH in solid state fermentation for growth of Schwanniomyces castellii

Utilization of soluble starch by Schwanniomyces castellii in a solid state fermentation
system was highest in unbuffered medium when initial and final pH of the
medium were 6.5-7.0 and 4.0-4.6, respectively. An economic strategy involving the
use of urea as a sole nitrogen source in medium with initial pH of 6.5 allowed
maximum substrate utilization in the absence of buffer and without any contamination
in column fermenter.