ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

A Neutral Heteropolysaccharide from the Flowers of Malva mauritiana L.

P. Capek, A. Kardošová, and D. Lath

Institute of Chemistry, Slovak Academy of Sciences, SK-842 38 Bratislava

Abstract: A neutral heteropolysaccharide consisting of D-galactose (23.4 %), L-arabinose (34.3 %), and L-rhamnose (42.2 %) has been isolated from the mucilage of the flowers of Malva mauritiana L. Its relative molecular mass determined by the light-scattering method was unusually high, M_r = 3.71 x 10⁶. This finding was supported by gel-permeation chromatography whereby the polysaccharide was totally excluded from several gels with exclusion limits 0.05-1.5 x 10⁶. The results of chemical and spectroscopic investigations indicated a branched structure of the polysaccharide with 3,6-linked. D-galactopyranose, 5-linked L-arabinofuranose as well as 4-linked and terminal L-rhamnopyranose residues as the main building units.

Full paper in Portable Document Format: 532a131.pdf

Chemical Papers 53 (2) 131–136 (1999)