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. 2006 Sep;188(17):6168–6178. doi: 10.1128/JB.00365-06

FIG. 3.

FIG. 3.

Representative GC-MS analysis of purified EPS (HMW forms). (A) Glycosyl composition analysis: total-ion chromatogram of the TMS-α/β-methyl glycosides derived from EPS (NGR234). Peak 1, glucuronic acid; peak 2, galactose; peak 3, glucose; peak 4, glucose and 4,6-pyruvate acetal of galactose coelute; peak 5, 4,6-pyruvate acetal of galactose; peak S, internal standard. Unlabeled peaks are components arising from the culture medium. (B) Glycosyl linkage analysis: total-ion chromatogram of the partially methylated alditol acetate derivatives prepared from NGR234. For an explanation of abbreviations see Table 4.