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Authors = Vânia Aparecida de Freitas Formenton Macedo dos Santos

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18 pages, 248 KiB  
Article
Evaluation of Antioxidant Capacity and Synergistic Associations of Quinonemethide Triterpenes and Phenolic Substances from Maytenus ilicifolia (Celastraceae)
by Vânia Aparecida de Freitas Formenton Macedo dos Santos, Daniela Pereira dos Santos, Ian Castro-Gamboa, Maria Valnice Boldrin Zanoni and Maysa Furlan
Molecules 2010, 15(10), 6956-6973; https://doi.org/10.3390/molecules15106956 - 11 Oct 2010
Cited by 39 | Viewed by 11359
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Antioxidants)
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