on the basis of radiospectroscopy , methylation analysis , smith degradation , and chromium trioxide oxidation , the repeating oligosaccharide unit of the polysaccharide can be assigned the following structure : ( formula : see text ) where glcnac is 2-acetamido-2-deoxy-d-glucopyranose , manp is mannopyranose , rhalca is rhammolacytic acid and ac is an acetyl group .
C0028959
oligosaccharide
C0032594
polysaccharide