食品科学 ›› 2009, Vol. 30 ›› Issue (20): 146-150.doi: 10.7506/spkx1002-6300-200920028

• 工艺技术 • 上一篇    下一篇

AB-8大孔树脂对槐花总黄酮吸附性能研究

王慧彦,方 芸,王 妍,杨树平,张珍明,张所信   

  1. 淮海工学院
  • 收稿日期:2008-10-30 出版日期:2009-10-15 发布日期:2010-12-29
  • 通讯作者: 王慧彦 E-mail:wanghy0118@163.com
  • 基金资助:

    淮海工学院校内立项课题(KX07041)

Macroporous Resin AB-8 Adsorption for Purifying Total Flavonoids from Pagoda Flowers

WANG Hui-yan,FANG Yun,WANG Yan,YANG Shu-ping,ZHANG Zhen-ming,ZHANG Suo-xin   

  1. Huaihai Institute of Technology, Lianyungang 222005, China)
  • Received:2008-10-30 Online:2009-10-15 Published:2010-12-29
  • Contact: WANG Hui-yan, E-mail:wanghy0118@163.com

摘要:

目的:探讨AB-8大孔树脂对槐花中总黄酮静态和动态的吸附性能。方法:用微波辅助法得到粗提液,利用分光光度法测定样品中黄酮含量,考察吸附剂用量、粗提液浓度、pH值、吸附时间等条件对吸附结果的影响。结果:AB-8树脂对槐花中总黄酮具有较好的吸附性能。静态吸附最佳条件:树脂与提取液比为1:20(g/ml)、25℃、pH5~6、粗提液中的黄酮含量0.10~0.17mg/ml、恒温振荡70min、70%乙醇洗脱,在此条件下,黄酮总回收率为71.94%;动态吸附的最佳条件为:提取液上样质量浓度0.045~0.070mg/ml、pH5、以0.2ml/min的流速通过径高比为1:8的层析柱,70%的乙醇4BV洗脱,在此条件下,黄酮总回收率为39.32%。结论:AB-8树脂较适于分离纯化槐花总黄酮。

关键词: 大孔树脂, 槐花, 总黄酮, 吸附

Abstract:

This work studied static and dynamic adsorption and desorption of total flavonoids prepared from pagoda flowers by microwave-assisted extraction on macropurous resin AB-8. Results showed that AB-8 resin had good adsorption capacity to pagoda flower flavonoids; the optimum static adsorption and desoprtion conditions were as follows: adsorption on a shaking table for 80 min at 25 ℃with a ratio of resin to sample 1:20(g/ml), at pH 5-6, sample concentration 0.10-0.17 mg/ml and then desorption with 70% aqueous ethanol as eluent, and under such conditions, the recovery of flavonoids was 71.94%; a recovery of total flavonoids of 39.32% was obtained by the following optimum dynamic adsorption and desoption conditions of sample concentration 0.045-0.070 mg/ml, pH 5, ratio of column diameter to length 1:8, flow rate 0.2 ml/min and 70% aqueous ethanol as eluent.

Key words: macroporous resin, pagoda flowers, total flavonoid, adsorption

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