data obtained by the 13c-n.m.r.-spectral analysis of the smith-degradation product revealed that it was a linear-backbone polysaccharide analogous to a rhodotorula glutinis mannan , but composed of pairs of 2-acetamido-2-deoxymannopyranosyl residues alternately linked beta- ( 1 leads to 3 ) and beta- ( 1 leads to 4 ) .
C0032594
polysaccharide
C0024727
mannan