Chemistry of Natural Compounds

, Volume 46, Issue 6, pp 950–952 | Cite as

Supercritical CO2 extraction and GC-MS analysis of the volatile components from Gastrodia elata

  • Yan-Ni Zhang
  • Xuan-Feng Yue
  • Zhe-Zhi Wang

The steamed and dried tubers of Gastrodia elata Blume, which are called “Tianma” in China, have been officially listed in the Chinese Pharmacopoeia for a long time. Its tubers have been widely used for the treatment of rheumatism, neuralgia, epilepsy, paralysis, hemiplegia, lumbago, headache, and vertigo [1, 2, 3]. Many companies in China are promoting large-scale cultivation of Gastrodia elata Blume with clinical interest in mind [4]. Concomitant with the imminent large-scale cultivation and commercial exploitation of Gastrodia elata Blume, quality control during processing and storage is critical.

In recent years supercritical fluid extraction (SFE) has become an alternative to more conventional extraction procedures. With carbon dioxide, the most commonly used supercritical fluid, supercritical conditions are readily attained (critical temperature 31.05°C, critical pressure 72.9 atm; 1 atm = 101, 325 Pa). Carbon dioxide also has the additional advantages of being nonflammable,...


Supercritical Fluid Extraction Octadecadienoic Acid Static Duration Heptadecanoic Acid Pentadecanoic Acid 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research was supported by the Chinese Traditional Medicine Modernization Foundation of Shaanxi Province, China (No. 2009K19-07) and the Fundamental Research Funds for the Central Universities (GK200902058).


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Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  1. 1.Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical ChemistryXi′an, shaaxiP. R. China
  2. 2.School of Life SciencesShaanxi Normal UniversityXi′anChina

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