The initial hydrolysate composition is shown in Table 2. The
saccharide content after shake-flask cultivation depended on the
strain. There were also subtle differences between sugar assimilation
of specific strains cultivated with various nitrogen sources,but this may generally be the result of growth problems connected
with the difficulty of nitrogen source assimilation. Glucose, fructose,
maltose and galactose were assimilated by all of the tested
strains. Sucrose was not assimilated by the C. tropicalis yeast. S.
cerevisiae was not able to utilise xylose, arabinose, rhamnose and
a-D-glucuronic acid (which was assimilated only when T. cutaneum
was cultivated). The presence of significant amounts of hexoses
(glucose, fructose and galactose) in the medium after cultivation
suggests that the 48 h period of cultivation was probably too short
to fully utilise assimilable sugars. Additionally, for many of the
microbial strains residual glucose may impair the assimilation of
pentoses and oligosaccharides. The results are closely correlated
with strain assimilation patterns presented in the literature