Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography.

@article{Leito2002QuickPS,
  title={Quick preparative separation of natural naphthopyranones with antioxidant activity by high-speed counter-current chromatography.},
  author={Gilda Guimar{\~a}es Leit{\~a}o and Suzana Guimar{\~a}es Leit{\~a}o and Wagner Vilegas},
  journal={Zeitschrift fur Naturforschung. C, Journal of biosciences},
  year={2002},
  volume={57 11-12},
  pages={1051-5}
}
The natural naphthopyranones paepalantine [structure: see text], paepalantine-9-O-beta-D-glucopyranoside [structure: see text] and paepalantine-9-O-beta-D-allopyranosyl-(1-->6)-O-beta-D-glucopyranoside [structure: see text] were separated in a preparative scale from the ethanolic extract of the capitula of Paepalanthus bromelioides by high-speed counter-current chromatography (HSCCC). The solvent system used was composed of water-ethanol-ethyl acetate-hexane (10:4:10:4, v/v/v/v). This technique… CONTINUE READING