Presence of beta-glycosyl linkages in caryophyllan: the main polysaccharide from the Pseudomonas caryophylli LPS fraction

A new significant structural feature of the more abundant polysaccharide (caryophyllan) of the lipopolysaccharide fraction (LPS) from Pseudomonas caryophylli is reported. In particular, the occurrence in the caryophyllan structure of beta-linkages, about 11%, besides the more abundant alpha-linkages, has been evidenced by spectroscopic investigation of the polymer-degraded compounds. (C) 1998 Elsevier Science Ltd. All rights reserved.