Anthraquinone glycosides

October 13, 2017
Carthamin

Cover imageA HPLC strategy has been created for the simultaneous characterisation of anthraquinone glycosides and aglycones in extracts of Rubia tinctorum L. The anthraquinones are divided on an end-capped C18-RP line with a water–acetonitrile gradient as eluent and measured with Ultraviolet detection at 250 nm. With this technique the glycosides lucidin primeveroside and ruberythric acid additionally the aglycones lucidin, alizarin, purpurin, quinizarin and 2, 6-dihydroxyanthraquinone are analysed. Lucidin that is perhaps not commercially readily available ended up being synthesised beginning resorcinol and phthalic anhydride. The glycosides ruberythric acid and lucidin primeveroside are commercially available as a mix and were divided by droplet counter-current chromatography in ascending circulation with chloroform–methanol–water as eluents prior to their usage as requirements.

Keywords

  • Anthraquinones;
  • Lucidin primeveroside;
  • Ruberythric acid;
  • Lucidin;
  • Alizarin;
  • Purpurin;
  • Quinizarin
Source: www.sciencedirect.com
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