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PURIFICATION OF POLYPHENOLS FROM GRAPE SEED BY MACROPOROUS ABSORBENT RESINS

Guohong Wu

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Abstract

Adsorption and desorption experiments were carried out to screen the suitable macroporous absorbent resin for grape seed polyphenols. Results indicate that macroporous resin AB-8 possesse the strongest abso-rbend ability and easier desorption property.The optimum absorption conditions of macroporous resin AB-8 are concentration of feeding 3.0 g/L ,pH 4.5,feeding rate 3 BV/h. And the optimum desorption conditions are elute-ethanol concentration 80 % ,elution rate 3 BV/h.Purified under this condition,the obtained polyphenols product have 81.1% purity.

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What this paper is about

Adsorption and desorption experiments were carried out to screen the suitable macroporous absorbent resin for grape seed polyphenols. Results indicate that macroporous resin AB-8 possesse the strongest abso-rbend ability and easier desorption property.The optimum absorption conditions of macroporous resin AB-8 are concentration of feeding 3.0 g/L ,pH 4.5,feeding rate 3 BV/h. And the optimum desorption conditions are elute-ethanol concentration 80 % ,elution rate 3 BV/h.Purified under this condition,the obtained polyphenols product have 81.1% purity.

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Available abstract

Adsorption and desorption experiments were carried out to screen the suitable macroporous absorbent resin for grape seed polyphenols. Results indicate that macroporous resin AB-8 possesse the strongest abso-rbend ability and easier desorption property.The optimum absorption conditions of macroporous resin AB-8 are concentration of feeding 3.0 g/L ,pH 4.5,feeding rate 3 BV/h. And the optimum desorption conditions are elute-ethanol concentration 80 % ,elution rate 3 BV/h.Purified under this condition,the obtained polyphenols product have 81.1% purity.

Key concepts: Desorption, Polyphenol, Elution, Adsorption, Chemistry, Chromatography, Absorption (acoustics), Ethanol

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