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[Extraction, isolation and purification for ginkgolide B].

Chenfeng Zhang1, Minghui Li, Yun Tang

  • 1China Pharmaceutical University, Nanjing 210009, China.

Zhongguo Zhong Yao Za Zhi = Zhongguo Zhongyao Zazhi = China Journal of Chinese Materia Medica
|October 12, 2010
PubMed
Summary

This study presents an efficient method for isolating ginkgolide B from ginkgo leaves using macroporous resin and ethanol elution. The optimized process yields high-purity ginkgolide B (95%), suitable for industrial production.

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Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Pharmacognosy

Background:

  • Ginkgo biloba leaves are a rich source of bioactive compounds.
  • Ginkgolide B is a key active component with therapeutic potential.
  • Efficient extraction and purification methods are crucial for its utilization.

Purpose of the Study:

  • To develop a simple and effective method for ginkgolide B extraction and purification.
  • To optimize conditions for high-yield and high-purity ginkgolide B isolation.
  • To assess the suitability of the method for industrial-scale production.

Main Methods:

  • Ginkgo leaf extraction using 70% ethanol.
  • Adsorption and elution with HPD-450 macroporous resin.
  • Purification through crystallization with isopropanol.

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Main Results:

  • Optimized extraction achieved a ginkgolide B transfer rate.
  • Macroporous resin effectively separated ginkgolide B from impurities.
  • Final recrystallization yielded ginkgolide B with 95% purity.

Conclusions:

  • The developed method is simple, stable, and easy to operate.
  • The process is well-suited for the industrialized production of ginkgolide B.
  • High-purity ginkgolide B can be obtained efficiently from ginkgo leaves.