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Caffeic acid derivatives from Bupleurum chinense.

G Haghi1, A Hatami1, M Mehran1

  • 1Phytochemistry Group, Barij Essence Medicinal Plants Research Center, Kashan, I.R. Iran.

Research in Pharmaceutical Sciences
|February 7, 2015
PubMed
Summary
This summary is machine-generated.

This study identifies caffeic acid derivatives and key flavonols in Bupleurum chinense aerial parts. These findings contribute to understanding the plant

Keywords:
ApiaceaeBupleurum chinenseCaffeic acid derivativesFlavonoidsHPLC

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Area of Science:

  • Phytochemistry
  • Analytical Chemistry
  • Pharmacognosy

Background:

  • Bupleurum chinense is a traditional medicinal herb.
  • Understanding its chemical composition is crucial for its application.
  • Phenolic compounds and flavonoids are key bioactive constituents.

Purpose of the Study:

  • To identify and quantify caffeic acid derivatives in Bupleurum chinense.
  • To characterize and quantify flavonoid aglycones in the plant.
  • To determine the total phenolic and flavonoid content.

Main Methods:

  • Reverse-phase high-performance liquid chromatography (RP-HPLC) with a photodiode array (PDA) detector.
  • Identification using reference compounds and chemical reactions.
  • Acid hydrolysis for flavonoid aglycone analysis.

Main Results:

  • Caffeic acid (CA) and its derivatives (3-CQA, 4-CQA, 5-CQA) were identified.
  • Flavonol content: quercetin (0.36%), kaempferol (1.11%), isorhamnetin (0.16%).
  • Total phenolic content ranged from 7.3-18.7%; total flavonoids from 0.58-2.72%.

Conclusions:

  • Bupleurum chinense aerial parts are rich in caffeic acid derivatives and specific flavonols.
  • The quantitative data provides a basis for quality control and further research.
  • This chemical profiling supports the medicinal use of Bupleurum chinense.