[Chemical studies on SC3, a polysaccharide from Salvia chinensis].
OBJECTIVE
To study the chemical structure of SC3, an acidic polysaccharide from Salvia chinesis.


METHODS
Based on chemical (including sugar composition analysis, methylation analysis, uronic acid reduction and partial acid hydrolysis) and spectral analysis (IR, NMR, ESI-MS), the structural characterization of SC3 was investigated.


RESULTS
SC3 was composed Rha, Ara, Gal and GalA, with its mean molecular weight of 7.7 x 10(4). By means of methylation analysis, partial acid hydrolysis, NMR and ESI-MS spectrum, the linkages and sequence information of SC3 were obtained.


CONCLUSIONS
SC3 is an complicated acidic polysaccharide, obtained for the first time from the plant.
Liu
Cui-ping
CP
Shanghai Institute of Materia Medica, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
Wang
Xue-song
XS
Fang
Ji-nian
JN
D001089:Arabinose / Q000737:chemistry / Q000302:isolation & purification; D005690:Galactose / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D008970:Molecular Weight; D010946:Plants, Medicinal / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification*; D012210:Rhamnose / Q000737:chemistry / Q000302:isolation & purification; D027544:Salvia / Q000737:chemistry*
D011134:Polysaccharides; D001089:Arabinose; D012210:Rhamnose; D005690:Galactose