Abstract
The structural features of ukonan C, the polysaccharide having remarkable reticuloendothelial system-potentiating activity obtained from the rhizome of Curcuma longa L., were investigated by methylation analysis, carbon-13 nuclear magnetic resonance, periodate oxidation and enzymic degradation studies. It is mainly made up of arabino-3,6-galactan type and 4,6-branched glucan type structural units. Degradation with a-amylase followed by the elimination of 1,4-linked glucan side chains resulted in a marked decrease of its immunological activity.
| Original language | English |
|---|---|
| Pages (from-to) | 441-444 |
| Number of pages | 4 |
| Journal | Chemical and Pharmaceutical Bulletin |
| Volume | 39 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1991 |
Keywords
- Curcuma longa
- enzymic degradation
- immunological activity
- methylation analysis
- polysaccharide structure
- reticuloendothelial system
- rhizome
- ukonan C
ASJC Scopus subject areas
- Chemistry(all)
- Drug Discovery