[Structural features of two neutral polysaccharides Md-1, Md-2 from Ophiopogon japonocus].
OBJECTIVE
To study the chemical feature of Md-1, Md-2 polysaccharides which extracted from Ophiopogon japonocus.


METHODS
Two constituents were isolated and purified by gel-filtration chromatography. Physicochemical constants and spectral analysis further were used to study their structural features.


RESULTS
The mean molecular weights were estimated to be 27064 and 48651. Structures were composed of D-glucose.


CONCLUSIONS
Md-1 and Md-2 polysaccharides are glucosans, which only are composed of D-glucose units joined by alpha-(1-->4) glucosidic linkages.
She
Geimei
G
China Agricultural University, Beijing 100094.
Shi
Jieping
J
D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005947:Glucose / Q000032:analysis; D008970:Molecular Weight; D031441:Ophiopogon / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification
D004365:Drugs, Chinese Herbal; D011134:Polysaccharides; D005947:Glucose