食品科学 ›› 2010, Vol. 31 ›› Issue (14): 67-70.doi: 10.7506/spkx1002-6630-201014015

• 工艺技术 • 上一篇    下一篇

大孔吸附树脂对杜仲叶黄酮的富集纯化

付桂明1,罗阳帆2,张娅楠2,万 茵2,柴建新2,陈勇辉1,吴晓芳1,陈建芳1   

  1. 1.南昌大学中德食品工程中心
    2.南昌大学生命科学与食品工程学院
  • 收稿日期:2009-11-12 修回日期:2010-04-13 出版日期:2010-07-15 发布日期:2010-12-29
  • 通讯作者: 付桂明 E-mail:wanyin_0@tom.cn
  • 基金资助:

    江西省自然科学基金项目(2008GQN0042)

Using Macroporous Resin for Enriching and Purifying Total Flavonoids from the Crude Extract of Eucommia ulmoides Oliv. Leaves

FU Gui-ming1,LUO Yang-fan2,ZHANG Ya-nan2,WAN Yin2,CHAI Jian-xin2,CHEN Yong-hui1,WU Xiao-fang1,CHEN Jian-fang1   

  1. 1. Sino-German Food Engineering Centre, Nanchang University, Nanchang 330047, China;
    2. College of Life Science and Food Engineering, Nanchang University, Nanchang 330047, China
  • Received:2009-11-12 Revised:2010-04-13 Online:2010-07-15 Published:2010-12-29
  • Contact: FU Gui-ming E-mail:wanyin_0@tom.cn

摘要:

应用大孔吸附树脂对杜仲叶超临界法提取液中的黄酮类物质进行富集和纯化,得到树脂富集杜仲叶黄酮的最优工艺条件。对4 种大孔吸附树脂NKA-2、X-5、D101、AB-8 的吸附和解吸能力进行比较的结果表明:AB-8 树脂的吸附率和解吸率都最高,最佳吸附洗脱工艺为上样液黄酮质量浓度193.92mg/mL、pH2、吸附流速2.6mL/min、洗脱流速1.6mL/min、解吸剂80%乙醇用量30mL。所得洗脱液中黄酮质量分数从纯化前的10.2%可增加到纯化后的42.6% 以上。

关键词: 杜仲叶黄酮, 富集纯化, 大孔吸附树脂

Abstract:

In this study, the leaves of Eucommia ulmoides Oliv. were extracted with absolute ethanol to obtain flavonoid compounds. The crude extract was purified using 4 macroporous adsorption resins, and AB-8 was found to be the best choice due to both the highest adsorption and desorption capacity. The optimum conditions for adorption/desorption of the crude extract of the leaves of Eucommia ulmoides Oliv. were as follows: sample concentration 193.92 mg/mL at pH 2, sample flow rate 2.6 mL/min, desorption flow rate 1.6 mL/min and amount of 80% ethanol required for desorption 30 mL. After the optimized purification, the concentration of flavonoids was improved from 10.2% to 42.6%.

Key words: Eucommia ulmoides leaf flavonoids, enrichment and purification, macroporous resin

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