title: Isolation and characterization of 4-O-[3,4-O-(1-carboxyethylidene)-beta-D-galactopyranosyl]erythritol from Klebsiella K33 polysaccharide.
abstract: The tetrasaccharide-alditol, RL 0.8, from one stage of Smith degradation of Klebsiella K33, was subjected to Smith degradation to yield a disaccharide-alditol. The purified disaccharide-alditol was characterized by sugar analysis, methylation analysis, and mass spectrometry. The following structure was found. (formula see text)
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004896:Erythritol / Q000031:analogs & derivatives* / Q000032:analysis / Q000302:isolation & purification; D005690:Galactose / Q000031:analogs & derivatives* / Q000032:analysis / Q000302:isolation & purification; D007709:Klebsiella / Q000032:analysis* / Q000378:metabolism; D011135:Polysaccharides, Bacterial / Q000032:analysis
chemical_list: D011135:Polysaccharides, Bacterial; C040396:4-O-(3,4-O-(1-carboxyethylidene)-beta-galactopyranosyl)erithritol; D004896:Erythritol; D005690:Galactose