Abstract
The composition of the polysaccharide moieties of the lipopolysaccharide (LPS) fraction of Pseudomonas caryophylli is described. Two homopolysaccharide chains, the major one built up of (1 → 7)-linked α-caryophyllose [3,6,10- trideoxy-4-C-( d -glycero-1- hydroxyethyl)- d -erythro- d -gulo- decose] residues and the minor one made up of (1 → 7)-linked β-caryose (4,8-cyclo-3,9-dideoxy- l- erythro- d- ido-nonose) residues, were identified in the LPS fraction. In addition, experimental evidence of a third polysaccharide fraction mainly composed of heptose and glucose is also reported. The structural analysis was performed by chemical and spectroscopic methods.
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