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[Establish quality evaluation system for standard Ephedrae Herba decoction].

Jia-Yu Tong1,2,3, Jung Chao4, Yun-Tao Dai4

  • 1Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|October 11, 2017
PubMed
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This study establishes quality control methods for Ephedrae Herba decoction using UPLC-UV and UPLC-QTOF/MS. The findings provide a reference for evaluating Chinese herbal medicine decoctions, ensuring product quality.

Area of Science:

  • Pharmacognosy
  • Analytical Chemistry
  • Traditional Chinese Medicine

Background:

  • Ephedrae Herba is a traditional Chinese medicine with therapeutic applications.
  • Standardized quality control is crucial for ensuring the efficacy and safety of herbal medicines.

Purpose of the Study:

  • To develop and validate quality control methods for the standard decoction of Ephedrae Herba.
  • To establish a reference for the quality evaluation of all Chinese herbal medicine decoctions.

Main Methods:

  • Preparation of standard decoction of Ephedrae Herba.
  • UPLC-UV fingerprint analysis for total ephedrine and pseudoephedrine content.
  • UPLC-QTOF/MS for identification of major chemical constituents.
  • Evaluation of process stability through extraction ratio and transfer rate calculations.
Keywords:
Ephedrae Herbacontent determinationextraction ratiofingerprintstandard decoctiontransfer rate

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Main Results:

  • The total average concentration of ephedrine and pseudoephedrine was (2.11±0.70) g•L⁻¹.
  • Fingerprint similarity exceeded 0.85, with 10 major common peaks identified (alkaloids, flavonoids, organic acids).
  • Extraction ratio was (17±3.2)%, and the overall transfer rate of key components was (32.4±8.1)%.

Conclusions:

  • A robust method for evaluating the quality of standard Ephedrae Herba decoction was successfully established.
  • This study provides a valuable reference for the quality control of products derived from Ephedrae Herba water extracts.
  • The developed methods contribute to ensuring the consistency and reliability of traditional Chinese medicine preparations.