Separation,purification and preliminary structure analysis of Ramulus Mori polysaccharide
- VernacularTitle:桑枝多糖的分离纯化及结构初步分析
- Author:
Peixiang WANG
;
Zhen OUYANG
;
Lei ZHANG
;
Jing FANG
;
Jianming TANG
- Publication Type:Journal Article
- Keywords:
Ramulus Mori;
polysaccharide;
separation purification;
structure analysis
- From:
Chinese Traditional Patent Medicine
1992;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
AIM: To study the isolation,purification and characterization of Ramulus Mori polysaccharide. METHODS: Ramulus Mori was extracted by boiling water. The raw extract was precipitated fractionally by alcohol deproteinized,passing through DEAE ion exchange cellulose ( DEAE-52) and SephadexG-100,obtained RMPS1 and RMPS2. The composition and characterization of Ramulus Mori polysaccharide were researched by TLC、IR、 GC、HPLC and smith degradation. RESULTS: The molecular weight of RMPS1 and RMPS2 were 5. 8 ? 105 and 6. 5 ? 105; RMPS1was made up of rhammose、arabinose、glucose and galactose with the molarity rate of 1. 08 ∶ 1 ∶ 1. 40 ∶ 1. 57; RMPS2 of rhammose、glucose and galactose with the molarity rate of 11. 38 ∶ 1 ∶ 1. 35. Smith degradation showed that the main linkage form in RMPS1 and RMPS2 was 1→2 and 1→4 glycosidic linkages,But some 1→3 glycosidic linkages also existed in the molecules; infrared spectrum showed that both had the polysaccharide characteristic absorption peaks. CONCLUSION: The structures of RMPS1 and RMPS2 are first determined from Ramulus Mori.
