Abstract
Totally,12 macroporous resins were tested for their adsorption and desorption performance to total flavonoids from Chrysanthemum indicum L.,and 3 of them,namely XDA-1,LSA-21 and AB-8 resins were selected for subsequent studies,which were carried out to investigate the static adsorption and desorption behaviors of the selected resins.Finally,XDA-1 resin was selected to purify crude total flavonoid extract from Chrysanthemum indicum L.due to its higher adsorption capacity(84.1 mg/g) and desorption ratio(96.2%) and better static adsorption kinetics than those of LSA-21 and AB-8 resins.The optimum pH for XDA-1 resin adsorption ranged from 4 to 5 and the optimum desorption solvent 70% ethanol.
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