Abstract
Chromatographic fractionation of the organic extract from leaves of Ouratea multiflora afforded the flavone dimers heveaflavone, amentoflavone-7′, 4‴-dimethyl eter, podocarpusflavone-A and amentoflavone. Their structures were elucidated from spectral data, including 2D-NMR experiments of the natural substances. Biological activities of all isolates were evaluated, using antimicrobial assay against Gram-positive bacteria Staphylococcus aureus and Bacillus subtilis, cytotoxicity assay against mouse lymphoma (L5178) and KB cell lines, TLC screening for acetylcholinesterase inhibitors and antioxidant activity measured by DPPH test.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 319-324 |
| Number of pages | 6 |
| Journal | Revista Brasileira de Farmacognosia |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2007 |
Keywords
- Antibacterial activity
- Biflavonoids
- Ochnaceae
- Ouratea multiflora
ASJC Scopus subject areas
- Pharmacology, Toxicology and Pharmaceutics(all)
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