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Purification of cinnamoyl-C-glyoside chromone

  • US 5,675,000 A
  • Filed: 03/21/1996
  • Issued: 10/07/1997
  • Est. Priority Date: 03/21/1996
  • Status: Expired
First Claim
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1. A method for purifying 8-C-β

  • -D- 2-O-(E)-cinnamoyl!glycopyranosyl-2- (R)-2-hydroxy!propyl-7-methoxy-5-methyl-chromone (the "540 compound"), comprising the steps of;

    (a) contacting a decolorizing agent, which has been obtained from the processing of a slurry of an aloe leaf extract, with an organic solvent to extract the absorbed 540 compound from the decolorizing agent into the organic solvent, thereby forming a mixture of decolorizing agent and organic solvent containing the 540 compound; and

    (b) separating the decolorizing agent from the organic solvent to yield a solution highly enriched in compound 540.

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