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The Study on Purification and Adsorption of Flavonoids from Litchi Seed by HPD-300 Macroporous Resin

DING Li-wen,TANG Jian-ping*,YANG Shu-wu,HE Juan,LEI Yu,CHEN Wen-fan(College of Chemistry and Chemical Engineering,Jiangxi Normal University,Nanchang Jiangxi 330022,China)  
Macrophorous resin HPD-300 was selected by comparing the properties of adsorption and desorption of 6 types of macroporous resins for flavonoids from Litchi seed.The adsorption character and absorption kinetics of macrophorous resin HPD-300 for flavonoids from Litchi seed were investigated.The result showed that macrophorous resin HPD-300 was a kind of preferable macroporous resin for flavonoids from Litchi seed,and the purity of flavonoids in product was up to 74%.The absorption kinetics indicated the adsorption date fitted well into the Langmuir and Freundlich adsorption isotherm mode process.
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