Abstract
Codonopsis pilosula is a perennial species of flowering plants propagated in Northeast Asia. A water-soluble polysaccharide, CPPS 3, was extracted from the root of Codonopsis pilosula by boiled water extraction and ethanol precipitation. The molecular weight was estimated to be 7.4 × 10 4 Da determined by using Gel permeation chromatography. Monosaccharide composition and the structure of the polysaccharide were determined by gas spectroscopy, Fourier transform IR (FT-IR) spectroscopy, NMR spectroscopy and mass spectroscopy and some chemical method analysis was made. The components were galactose, arabinose and rhamnose in the molar ratio of 1.13:1.12:1. The main chain of CPPS 3 is illustrated to be (1→3)-linked-β-Gal pNAc, (1→3)-linked-α-Rha p and (1→2,3)-β-Gal p.
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