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Objective To study the technology of separating and purificating of polysaccharides from Portulaca oleracea L‥ Method The polysaccharide was obtained from Portulaca oleracea L. by hot water extraction followed by precipitation with ethanol and purified with DEAE cellulose column chromatography. The molecular weight and the composition of the polysaccharides were determined by high-performance gel-permeation...
Objective: To develop a HPLC method for determining the contents of schisantherin and deoxyschizandrin in the dispersible tablets of Fructus Schisandrae Sphenanthera. Methods: The samples were extracted with methanol through supersonic wave and determined by HPLC on Hypersil ODS column (250mm × 4.6mm, 5µm) using methanol-water (73∶27, V/V) as a mobile phase. The flow rate was 0.8 mL/min and the detection...
Aqueous two-phase extraction (ATPE) was employed to purify resveratrol from peanut vine. The aqueous two-phase system (ATPS) composed of alcohol and inorganic salt was investigated in details, including the effects of phase composition, concentration of the organic solvent and inorganic salt, temperature and extraction time. The optimal differential partitioning of resveratrol was achieved in the...
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