Free radical scavenging activity of the flavonoids isolated from Tecoma radicans
Journal of Basic and Applied Sciences. 2007; 3 (1): 49-53
en Inglés
| IMEMR
| ID: emr-83333
ABSTRACT
Successive extracts of aerial parts of Tecoma radicans, F. Bignoniaceae, showed free radical scavenging activity. Ethyl acetate extract produced maximum inhibition [97.8%] of DPPH using electron spin resonance [ESR] technique. Activity-guided fraction led to the isolation of the flavonoids. Five were identified as luteolin; quercetin 3-methyl ether; apigenin; 6-hydroxyluteolin and chrysoeriol. The most potent of them as free radical scavenger is quercetin 3-methyl ether 68.9%, then luteolin 39.4%
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Índice:
IMEMR (Mediterraneo Oriental)
Asunto principal:
Quercetina
/
Flavonoides
/
Extractos Vegetales
/
Depuradores de Radicales Libres
/
Componentes Aéreos de las Plantas
/
Apigenina
/
Luteolina
Idioma:
Inglés
Revista:
J. Basic Appl. Sci.
Año:
2007
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