The product extracted
with iso-propanol-KCl treatment of juices obtained
from stalk segments inoculated with X. albilineans was hydrolyzed
with HCl and then analyzed by capillary electrophoresis.
As shown in Fig. 3A, a mean peak at 6.90 min,
that represented about 38% of the total peaks in terms of
area counts, was identified as sucrose. Cellobiose (7.41
min), mannose (9.25 min), glucose (12.12 min), glucuronic
acid (13.33 min), all of them structural units of xanthan, and
glucose-1-P (14.05 min), used as a glucose donor during
xanthan production, were also revealed. The peak migrating
at 12.74 min could be identified as galactitol.