目的 考察常用的大孔吸附樹脂對金銀花多酚類物質的純化效果，篩選純化工藝條件。方法 以總酚的質量分數(shù)和回收率作為指標，采用靜態(tài)吸附及動態(tài)吸附考察樹脂的吸附、解吸性能。結果 NKA-2型樹脂對多酚類物質的吸附能力明顯強于其他樹脂，其載藥量為7倍樹脂體積，水洗5倍樹脂體積，60%乙醇洗6倍樹脂體積。此條件下，浸膏量減少40%左右，總酚質量分數(shù)提升近一倍，達到60%左右，樣品回收率達到55%。結論 NKA-2型樹脂對金銀花多酚類的純化效果較好，適用于金銀花多酚類物質的分離純化。

Objective To study the process parameters for purification of polyphenols from Lonicerae Flos by commonly used macroporous resins, and to optimize the purification technological conditions. Methods The purity and recovery of polyphenols were taken as indexes, and the adsorption and desorption performance by difference resins were studied by using static adsorption and dynamic adsorption. Results It has been found that NKA-2 resin’s adsorption capacity of polyphenols was the best among those resins. The optimum condition is seven volume times of sample, five volume times of water washing, and six volume times of 60% ethanol washing. Under those conditions, 40% extract was reduced with the purity of polyphenols around 60%, and the recovery rate was 55%. Conclusion NKA-2 resin has a good performance and is suitable for the production of polyphenols from Lonicerae Flos.

國家重點基礎研究發(fā)展規(guī)劃（2009CB523003）；國家自然科學基金資助項目（81073033）