2006•Chemistry & BioengineeringRequires access

Study on Purification of Hawthorn Flavonoids by Macroporous Adsorption Resin

Yanhui Wang

Abstract

The effect of purifying hawthorn flavonoids by macroporous adsorption resin is studied.The results show that the adsorption resin of X-5 is appropriate to purify hawthorn flavonoids.The optimum conditions are as following:the concentration of hawthorn flavonoids is(2.0 mg·mL~(-1)) at the pH value of 3,flow velocity is 3 BV·h~(-1),the concentration of desorption agent is 70%(volume fraction) ethanol with 3 BV.After purified by adsorption resin of X-5,the purity of product can reach at 93.25%.The purification of product is satisfied with the requirement of medicinal raw material.

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Key concepts: Chemistry, Adsorption, Chromatography, Desorption, Raw material, Ethanol, Fraction (chemistry), Volume (thermodynamics)