食品科学 ›› 2013, Vol. 34 ›› Issue (22): 119-122.doi: 10.7506/spkx1002-6630-201322024

• 分析检测 • 上一篇    下一篇

苦丁冬青苦丁茶中咖啡酰奎尼酸类物质的分离纯化和高效液相色谱法分析

王晴川,张 鑫,张文芹,孙昕祈,胡 冰,孙 怡,曾晓雄   

  1. 南京农业大学食品科技学院,南京 210095
  • 收稿日期:2013-01-16 修回日期:2013-10-29 出版日期:2013-11-25 发布日期:2013-12-05
  • 通讯作者: 孙怡 E-mail:sunyi01@njau.edu.cn
  • 基金资助:

    国家自然科学基金项目;江苏高校优势学科建设工程资助项目

Purification and HPLC Analysis of Caffeoylquinic Acids from Kudingcha Made from Ilex kudingcha C.J. Tseng

WANG Qing-chuan,ZHANG Xin,ZHANG Wen-qin,SUN Xin-qi,HU Bing,SUN Yi,ZENG Xiao-xiong   

  1. College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2013-01-16 Revised:2013-10-29 Online:2013-11-25 Published:2013-12-05

摘要:

以苦丁冬青苦丁茶为研究材料,通过柱层析和半制备色谱分离纯化得到6种咖啡酰奎尼酸(CQA)类物质产品,并采用TSKgel ODS-80 TsQA色谱柱和二极管阵列检测器(DAD),建立一种便捷、灵敏的分析苦丁冬青苦丁茶中CQA类物质的高效液相色谱分析方法。结果表明,通过半制备色谱可分离得到纯度95%以上的6种CQA类单体物质:3-CQA、4-CQA、5-CQA、3,4-diCQA、3,5-diCQA和4,5-diCQA。色谱条件:TSKgel ODS-80 TsQA色谱柱,流动相为水-甲醇-5‰甲酸体系,梯度洗脱,流速0.5mL/min,柱温40℃,检测波长326nm。该方法在一定范围内有良好线性,相关系数为0.9992~0.9999,平均加标回收率为96.34%,相对标准偏差均小于3%。

关键词: 苦丁茶, 苦丁冬青, 咖啡酰奎尼酸, 纯化, 高效液相色谱

Abstract:

Six caffeoylquinic acid (CQA) derivatives were separated by column chromatography and semi-preparative
high performance liquid chromatography (HPLC) from the crude extract of Ilex kudingcha C.J. Tseng. An HPLC method
with DAD and TSKgel ODS-80 TsQA column was developed for the simultaneous determination of CQAs in Kudingcha
made from Ilex kudingcha C.J. Tseng. The results demonstrated that six CQA derivatives with 95% purity, 3-CQA,
4-CQA, 5-CQA, 3,4-diCQA, 3,5-diCQA and 4,5-diCQA, could be obtained through the purification of Ilex kudingcha
C.J. Tseng by semi-preparative high performance liquid chromatography (HPLC). The chromatographic conditions were
determined as follows: oven temperature set at 40 ℃, gradient elution with methanol/formic acid (5‰) with a flow rate
0.5 mL/min, and detection at a wavelength of 326 nm. As results, good linearity was observed with correlation coefficients of
0.9992–0.9999, the average recovery of the CQA derivatives from spiked samples was 96.34%, with relative standard
deviations (RSD) less than 3% (n = 3).

Key words: Kudingcha, Ilex kudingcha C.J. Tseng, caffeoylquinic acids, purification, high performance liquid chromatography(HPLC)

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