Evaluation of the antioxidant activity of the flavonoids isolated from Heliotropium sinuatum resin using ORACFL, DPPH and ESR methodologies

Germán Barriga-González, Eduardo Chamorro, Melissa Salinas, Brenda Modak, Claudio Olea-Azar

Research output: Contribution to journalArticlepeer-review

Abstract

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: ORACFL (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.

Original languageEnglish
Pages (from-to)3125-3129
Number of pages5
JournalJournal of the Chilean Chemical Society
Volume61
Issue number3
DOIs
Publication statusPublished - 1 Sep 2016

Keywords

  • Antioxidants
  • DPPH
  • ESR
  • Flavonoids
  • Micelle
  • ORAC

ASJC Scopus subject areas

  • Chemistry(all)

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