POLYSACCHARIDES OF Eremurus. XV. STRUCTURE OF THE GLUCOMANNAN OF Eremurus lactiflorus.

Article abstract of DOI:10.1007/BF00579414

Ten oligosaccharides have been isolated from the products of the partial hydrolysis of a native acetylated glucomannan obtained from Eremurus lactiflorus O.Fedtsch.Their structures have been studied with the aid of acid hydrolysis before and after reduction with NaBH4, by the GLC method, and also by chromatography with markers.The compositions and sequence of the monomers in tetra- and heptaoligosaccharides have been determined by the 13C NMR method.The glucomannan from the E. lactiflorus differs from the Eremurus glucomanans studied previously by the ratio of monosaccharides, the presence of O-Ac groups, the degree of polymerization, and the presence of a cellobiose unit (Glcp-Glcp) in the polymer chain.The repeating unit consists of 14 hexose residues.