食品科学 ›› 2013, Vol. 34 ›› Issue (13): 87-90.doi: 10.7506/spkx1002-6630-201313019

• 基础研究 • 上一篇    下一篇

紫甘薯中绿原酸及异绿原酸的高速逆流色谱分离

石伯阳1,李佳银1,周 桥1,朱丽娜1,陆 英1,2,*   

  1. 1.湖南农业大学园艺园林学院,湖南 长沙 410128;
    2.湖南农业大学 国家植物功能成分利用工程技术研究中心,湖南 长沙 410128
  • 收稿日期:2012-02-21 修回日期:2013-05-27 出版日期:2013-07-15 发布日期:2013-06-28
  • 通讯作者: 陆英 E-mail:luying960522@163.com
  • 基金资助:

    湖南省教育厅科学研究一般项目(10C0799;2012NK3088)

Isolation of Chlorogenic Acid and Isochlorogenic Acid from Purple Sweet Potato by High-speed Counter-current Chromatography

SHI Bo-yang1,LI Jia-yin1,ZHOU Qiao1,ZHU Li-na1,LU Ying1,2,*   

  1. 1. College of Horticulture and Landscape, Hunan Agricultural University, Changsha 410128, China;
    2. National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals,
    Hunan Agricultural University, Changsha 410128, China
  • Received:2012-02-21 Revised:2013-05-27 Online:2013-07-15 Published:2013-06-28
  • Contact: LU Ying E-mail:luying960522@163.com

摘要:

以广紫薯135为原料,建立高速逆流色谱(HSCCC)法制备分离紫甘薯中绿原酸及异绿原酸的方法。分别用乙酸乙酯-甲醇-水(3:1:5,V/V)为溶剂体系制备分离化合物Ⅰ,正己烷-乙酸乙酯-甲醇-水(1:3:1:4,V/V)为溶剂体系制备分离化合物Ⅱ,流速分别为1.5mL/min和2.0mL/min,转速850r/min,从200mg紫甘薯萃取物中分别得到纯度为98.5%的化合物Ⅰ(28mg)和纯度为97%的化合物Ⅱ(42mg),经质谱、核磁等技术鉴定化合物Ⅰ和Ⅱ分别为3-O-咖啡酰基奎宁酸和3,5-O-二咖啡酰基奎宁酸。

关键词: 紫甘薯, 绿原酸及异绿原酸, 高速逆流色谱, 制备分离

Abstract:

An efficient method for isolation and preparation of two phenolic compounds, namely cyaniding 3 chlorogenic
acid (compound I) and isochlorogenic acid (compound II) from purple sweet potato was established by high-speed
counter-current chromatography (HSCCC). Two compounds were separated with two-phase solvent systems, ethyl
acetate-methanol-water (3:1:5, V/V) and n-hexane-ethyl acetate-methanol-water (1:3:1:4, V/V), respectively, at a flow rate
of 1.5 mL/min and 2.0 mL/min, respectively. However, the same revolution speed of 850 r/min and the same injection
volume of 200 mg were used. The results from HPLC analysis showed 28 mg of compound Ⅰ with 98.5% purity and
42 mg compound Ⅱ with 97% purity were obtained. The chemical structures of the two compounds were identified
as 3-O-caffeoylquinic acid (Ⅰ) and 3,5-O-dicaffeoyquinic acid (Ⅱ) by mass spectrometry (MS) and nuclear magnetic
resonance imaging (NMR).

Key words: purple sweet potato, chlorogenic acid and isochlorogenic acid, high speed counter-current chromatography, preparative isolation

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