Physical, chemical and pharmacological characterization of a new oleogel-forming triterpene extract from the outer bark of birch (betulae cortex).

@article{Laszczyk2006PhysicalCA,
  title={Physical, chemical and pharmacological characterization of a new oleogel-forming triterpene extract from the outer bark of birch (betulae cortex).},
  author={Melanie N. Laszczyk and Sebastian J{\"a}ger and Birgit Simon-Haarhaus and Armin Scheffler and Christoph M Schempp},
  journal={Planta medica},
  year={2006},
  volume={72 15},
  pages={
          1389-95
        }
}
Triterpenes are biologically active secondary plant substances that display antimicrobial, hepatoprotective and anti-inflammatory effects. However, the poor solubility of triterpenes in both polar and non-polar solvents as well as expensive purification procedures have prevented the large-scale isolation of these compounds for medicinal purposes. Here, we describe a novel quantitative extraction method of triterpenes from the outer bark of birch (Betula species) in which betulin, a lupan… 

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