Title :
Studies on sulfated modification of Cordyceps polysaccharide
Author :
Zhao Jun ; Wu Shu-Qing ; Liu Bing-Xu
Author_Institution :
Bio-Sci. & Tech. Coll., Chang Chun Univ., Changchun, China
Abstract :
To improve the biological activity of Cordyceps polysaccharide, and in-depth develop Cordyceps resources, the experiment obtained Cordyceps polysaccharide from the Cordyceps mycelium powder through extraction, filtration, protein and freeze-dried using the method of water extraction and alcohol precipitation; modified its sulfation using the method of chlorosulfonic acid - pyridine, then obtained sulfated product; identified sulfate of the reshaping polyoses using the conventional methods of the potassium bromide mixing tablet and barium sulfate nephelometry, sulfur content was 19.18%, and sulfur degree of substitution was 2.43.
Keywords :
biotechnology; drying; filtration; medicine; pharmaceuticals; precipitation; proteins; Cordyceps mycelium powder; Cordyceps polysaccharide; Cordyceps resources; alcohol precipitation; barium sulfate nephelometry; biological activity; chlorosulfonic acid; filtration; freeze-drying; polyose reshaping; potassium bromide mixing tablet; protein; pyridine; sulfated modification; sulfur content; water extraction; Barium; Immune system; Powders; Proteins; Sediments; Sugar; Cordyceps; Cordyceps polysaccharide; chlorosulfonic acid - pyridine; sulfated modification;
Conference_Titel :
New Technology of Agricultural Engineering (ICAE), 2011 International Conference on
Conference_Location :
Zibo
Print_ISBN :
978-1-4244-9574-0
DOI :
10.1109/ICAE.2011.5943918