Optimizing Water-Extraction Process for Polysaccharides in the Residue of Fructus Jujubae by Orthogonal Design / 中药新药与临床药理

ABSTRACT

Objective To optimize the extraction process f or polysaccharide in the residue of Fructus Jujubae(FJ ).Methods The conditions of extraction process for polysaccharide of FJ was screen ed with the yield and content of polysaccharides as markers by orthogonal experimental design.Results The optimum extraction process was:soaking the residue of FJ with water at 90℃for3times(5hours each time )and precipitated with 80%ethanol.T he yield and content of polysaccharides were 20%and 43.54%respectively.Conclusion This procedure is reliable and polysac-charides can be extracted completely by this procedure.It can bring a hig h economy benefit.