Abstract
From the hot water extract of the barks ofEucommia ulmoides, a glycan, named eucomman B, has been isolated by treatment with cetyltrimethylammonium bromide followed by fractionation on DEAE-Sephadex A-25 and chromatography on Sephacryl S-300 columns. Chemical and spectroscopic studies established that the glycan possesses mainly α-1,2-linkedl-rhamno-α-1,4-linkedd-galacturonan structure. α-1,5-Linkedl-arabinofuranose, α-1,3-linkedl-arabinopyranose, β-1,3- and β-1,4-linkedd-galactose, 2,4-branchedl-rhamnose and 3,4-branchedd-galacturonic acid residues were also identified as the component sugar units. The glycan showed significant reticuloendothelial system potentiating activity in the carbon clearance test.
Original language | English |
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Pages (from-to) | 3091-3094 |
Number of pages | 4 |
Journal | Phytochemistry |
Volume | 29 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1990 |
Keywords
- Eucommia ulmoides
- Eucommiaceae
- bark
- phagocytic activity.
- polysaccharide
- structural analysis
ASJC Scopus subject areas
- Biochemistry
- Molecular Biology
- Plant Science
- Horticulture