食品科学 ›› 2012, Vol. 33 ›› Issue (1): 16-19.doi: 10.7506/spkx1002-6630-201201002

• 基础研究 • 上一篇    下一篇

快速分析彝药桃树寄生抗氧化成分

朴香兰1,邓长芹1,陈虎彪2,王 进1   

  1. 1. 中央民族大学中国少数民族传统医学研究院,北京 100081;2. 香港浸会大学中医药学院,香港
  • 收稿日期:2011-02-15 修回日期:2011-12-22 出版日期:2012-01-15 发布日期:2012-01-12
  • 通讯作者: 朴香兰 E-mail:xlpiao@163.com
  • 基金资助:

    高效液相偶联酪氨酸酶抑制活性检测与连翘酪氨酸酶抑制有效物质基础研究;利用色谱与化学指纹图谱分析地理环境对中韩两国药材基源鉴别的影响;国家大学生创新性实验计划项目:彝药桃树寄生抗氧化成分的研究

Rapid Analysis of Antioxidant Constituents from Taxillus delavayi, a Yi Ethnomedicinal Material

PIAO Xiang-lan1, DENG Zhang-qin1,CHEN Hu-biao2,WANG Jin1   

  1. 1. Institute of Chinese Minority Traditional Medicine, Minzu University of China, Beijing 100081, China;
    2. School of Chinese Medicine, Hong Kong Baptist University, Hongkong, China
  • Received:2011-02-15 Revised:2011-12-22 Online:2012-01-15 Published:2012-01-12
  • Contact: PIAO Xiang-Lan E-mail:xlpiao@163.com

摘要:

目的:快速分离、鉴定彝药桃树寄生的抗氧化成分。方法:通过1,1- 二苯基-2- 三硝基苯肼(DPPH) 自由基清除实验,评价彝药桃树寄生的甲醇提取物及其二氯甲烷、正丁醇及水萃取物的抗氧化作用,利用生物活性-高效液相跟踪方法,快速分离、鉴定其有效成分。结果:从彝药桃树寄生的二氯甲烷萃取物中分离、鉴定出有效成分为松脂酚(pinoresinol)。结论:利用生物活性- 高效液相跟踪方法可以快速分离、鉴定彝药桃树寄生中的抗氧化成分,可应用于其他天然植物活性成分的快速筛选。

关键词: 彝药桃树寄生, DPPH自由基清除作用, 生物活性-高效液相跟踪方法, 松脂酚

Abstract:

Objectives: To rapidly separate and identify antioxidant constituents from the whole plant of Taxillus delavayi, a Yi ethnomedicinal material, and assess their antioxidant activity. Methods: The antioxidant activity of the methanol extract of the medicinal material and its different solvent fractions obtained by repeated extractions sequentially with dichloromethane, n-butanol and water was assessed by DPPH free radical scavenging assay. The dichloromethane-soluble fraction was further separated by silica gel column chromatography, and a high antioxidant component named as TDD8 was obtained and analyzed by bioassay-linked HPLC and 1H-NMR. Results: An individual compound named as TDD8-2 was separated from TDD8 by semi-preparative HPLC and identified by 1H-NMR as pinoresinol. Conclusion: The bioassay-linked HPLC method allows the rapid separation and identification of antioxidant components from medicinal materials.

Key words: Taxillus delavayi, DPPH radical scavenging activity, bioassay-linked HPLC method, pinoresinol

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