An Integrated Method for the Extraction of Effective Substances from Cistanche deserticola

An integrated method for the extraction of phenylethanoid glycosides (PeG), betaine and polysaccharide from Cistanche deserticola was investigated. Granular C. deserticola was (trea-)(ted) with methanol and water under ultrasonic wave, and then the filtrate was passed through macro reticular resin (AB-8) column, strong-acidic cation exchange resin (001×7) column and Sephadex G-75 column successively. From which 52.3 mg PeG, 125.6 mg betaine and 24.5 mg C. deserticola polysaccharide were obtained, and the recovery were 64.4%, 92.9% and 53.5% respectively.