TY - JOUR
T1 - Structural Features of Ukonan C, a Reticuloendothelial System-Activating Polysaccharide from the Rhizome of Curcuma longa
AU - Gonda, Ryoko
AU - Tomoda, Masashi
PY - 1991
Y1 - 1991
N2 - 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.
AB - 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.
KW - Curcuma longa
KW - enzymic degradation
KW - immunological activity
KW - methylation analysis
KW - polysaccharide structure
KW - reticuloendothelial system
KW - rhizome
KW - ukonan C
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U2 - 10.1248/cpb.39.441
DO - 10.1248/cpb.39.441
M3 - Article
AN - SCOPUS:0026033570
SN - 0009-2363
VL - 39
SP - 441
EP - 444
JO - Chemical and Pharmaceutical Bulletin
JF - Chemical and Pharmaceutical Bulletin
IS - 2
ER -