Antioxidant quinonemethide triterpenes from Salacia campestris
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/01/2005
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Resumo |
A new quinonemethide triterpene named as salacin, has been isolated from the root bark of Salacia campestris in addition to the known pristimerin, maytenin, 20 alpha-hydroxymaytenin, and netzahualcoyene. Salacin was identified on the basis of NMR-spectral and mass spectrometric analysis. The free-radical scavenging activities of the quinonemethide triterpenes salacin (1), pristimerin (2), maytenin (3), 20a-hydroxymaytenin (4), and netzahualcoyene (5) towards DPPH have been evaluated and showed absorbance variation (AA) of 19, 20, 39, 28, 55, and 10%, respectively, having rutin (74% at 50 pm) and BHT (7% at 50 mu M) as standard compounds. |
Formato |
367-372 |
Identificador |
http://dx.doi.org/10.1002/cbdv.200590016 Chemistry & Biodiversity. Zurich: Verlag Helvetica Chimica Acta Ag, v. 2, n. 3, p. 367-372, 2005. 1612-1872 http://hdl.handle.net/11449/35058 10.1002/cbdv.200590016 WOS:000228254800004 |
Idioma(s) |
eng |
Publicador |
Verlag Helvetica Chimica Acta Ag |
Relação |
Chemistry & Biodiversity |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |