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Evaluation of antioxidant capacity and synergistic associations of quinonemethide triterpenes and phenolic substances from Maytenus ilicifolia (Celastraceae).

Authors
  • Dos Santos, Vânia Aparecida de Freitas F...
  • Dos Santos, Daniela Pereira
  • Castro-Gamboa, Ian
  • Zanoni, Maria Valnice Boldrin
  • Furlan, Maysa
Type
Published Article
Journal
Molecules
Publisher
MDPI AG
Publication Date
Jan 01, 2010
Volume
15
Issue
10
Pages
6956–6973
Identifiers
DOI: 10.3390/molecules15106956
PMID: 20938406
Source
Medline
License
Unknown

Abstract

This work describes the isolation of the secondary metabolites identified as the quinonemethides maytenin (1) and pristimerin (2) from Maytenus ilicifolia extracts obtained from root barks of adult plants and roots of seedlings and their quantification by high performance liquid chromatography coupled to a diode array detector. The electrochemical profiles obtained from cyclic voltammetry and a coulometric detector coupled to high-performance liquid chromatography contributed to the evaluation of their antioxidant capacity. The antioxidant properties of individual components and the crude extracts of the root barks of Maytenus ilicifolia were compared and the possible synergistic associations of quinonemethide triterpenes and phenolic substances were investigated by using rutin as a model phenolic compound.

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