A new biflavone glycoside from flowers of Asystasia gangetica


The yellow parts of the flowers of Asystasia gangetica were extracted with 85% methanol under reflux. The alcoholic extract was concentrated in vacuo and the aqueous extract was fractionated with solvents of increasing polarity. The ethyl acetate fraction yielded a yellow solid, which was characterized as apigenin 7-O-glucosyl(3′ → 6″)luteolin 7″-O-glucoside using UV, 1H, 1H–1H COSY, 13C NMR, and mass spectral studies.


Asystasia gangetica Acanthaceae biflavone glycoside 


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Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  • M. M. Senthamilselvi
    • 1
  • D. Kesavan
    • 1
  • N. Sulochana
    • 1
  1. 1.National Institute of TechnologyTiruchirappalliIndia

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