EVALUATION OF THE ANTIOXIDANT ACTIVITY OF THE FLAVONOIDS ISOLATED FROM HELIOTROPIUM SINUATUM RESIN USING ORAC FL, DPPH AND ESR METHODOLOGIES

The antioxidant capacity has been determined for a number of flavonoid compounds from Heliotropium sinuatum, a plant that grows in arid areas in the north of Chile. The methodologies used were: ORAC FL (oxygen radical absorbance capacity - fluorescein), DPPH (2,2-diphenyl-2-picrylhydrazyl) bleaching...

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Bibliographic Details
Published in:Journal of the Chilean Chemical Society 2016-09, Vol.61 (3), p.3125-3129
Main Authors: BARRIGA-GONZÁLEZ, GERMÁN, CHAMORRO, EDUARDO, SALINAS, MELISSA, MODAK, BRENDA, OLEA-AZAR, CLAUDIO
Format: Article
Language:eng ; por
Subjects:
CHEMISTRY, MULTIDISCIPLINARY
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Summary:The antioxidant capacity has been determined for a number of flavonoid compounds from Heliotropium sinuatum, a plant that grows in arid areas in the north of Chile. The methodologies used were: ORAC FL (oxygen radical absorbance capacity - fluorescein), DPPH (2,2-diphenyl-2-picrylhydrazyl) bleaching and electron spin resonance (ESR). These compounds were studied in homogeneous and heterogeneous media. The results showed that the 7-o-methyleriodictiol and 3-o-methylisorhamnetin are those with the highest antioxidant capacity
ISSN:0717-9707
0717-9707
DOI:10.4067/S0717-97072016000300024