Adsorption and desorption of chlorogenic acid with macrorporous resin D201

In order to separate and purify chlorogenic acid from plant materials, the adsorption and desorption capacity of three kinds of macroporous resins for chlorogenic acid had been investigated.It was found that D201 was the best one, its adsorption capacity and adsorption equilibrium concentration for chlorogenic acid was 101.2mg/mL resin, and 0.6μg/mL respectively.The desorption solution was composed of ethanol∶ water∶ HCl in ratio 50∶ 48∶ 2 (v/v/v) .Experiments showed chlorogenic acid could be well extracted and purified from potato washing water through D201 resin.