2. Academic Validation
  3. Thonningianins A and B, new antioxidants from the African medicinal herb Thonningia sanguinea

Thonningianins A and B, new antioxidants from the African medicinal herb Thonningia sanguinea

  • J Nat Prod. 2000 May;63(5):676-9. doi: 10.1021/np990396w.
I I Ohtani 1,  N Gotoh,  J Tanaka,  T Higa,  M A Gyamfi,  Y Aniya
Affiliations

Affiliation

  • 1 Department of Chemistry, Biology, and Marine Science, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan.
PMID: 10843586 DOI: 10.1021/np990396w
Abstract

Two new ellagitannins, thonningianins A (1) and B (2), have been isolated from the African medicinal herb Thonningia sanguinea and their structures elucidated by interpretation of spectroscopic data. Both 1 and 2 showed strong free radical scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) as shown by ESR analysis.

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