the results of structural studies with methylation and nmr analyses on the native phg and some of its specifically degraded products obtained on partial acid hydrolysis and acetolysis indicate that the polysaccharide moiety of the phg has an ( alpha 1-6 ) linked mannan backbone with mainly ( alpha 1-2 ) linked side chains , each of which consists of 2 to 5 mannose units , and most of the mannosyl side chains bear beta-galactofuranosyl residues linked to the 2 positions of the mannosyl nonreducing terminals .
C0032594
polysaccharide
C0024727
mannan