ArticleInternational journal of molecular sciences2020
The Flow of the Redox Energy in Quercetin during Its Antioxidant Activity in Water.
Article in International journal of molecular sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 20 citations in OpenAlex.
- Oxidation-derived metabolites sustain the antioxidant network of quercetin.Journal of computer-aided molecular design · 2026Article
- Quercetin and Its Metabolites: Mechanistic Insights as the Basis of Their Therapeutic Potential in NAFLD and HCC.Molecules (Basel, Switzerland) · 2025Review
- The multifaceted role of quercetin derived from its mitochondrial mechanism.Molecular and cellular biochemistry · 2024Review
- Computational Chemistry Strategies to Investigate the Antioxidant Activity of Flavonoids-An Overview.Molecules (Basel, Switzerland) · 2024Review
- Unraveling the Antioxidant Activity ofInternational journal of molecular sciences · 2023Article
- Current Trends in Computational Quantum Chemistry Studies on Antioxidant Radical Scavenging Activity.Journal of chemical information and modeling · 2022Review
- Flavonoids Seen through the Energy Perspective.International journal of molecular sciences · 2021Review
- Quercetin attenuates neurotoxicity induced by iron oxide nanoparticles.Journal of nanobiotechnology · 2021Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Most studies on the antioxidant activity of flavonoids like Quercetin (Q) do not consider that it comprises a series of sequential reactions. Therefore, the present study examines how the redox energy flows through the molecule during Q's antioxidant activity, by combining experimental data with quantum calculations. It appears that several main pathways are possible. Pivotal are subsequently: deprotonation of the 7-OH group; intramolecular hydrogen transfer from the 3-OH group to the 4-Oxygen atom; electron transfer leading to two conformers of the Q radical; deprotonation of the OH groups in the B-ring, leading to three different deprotonated Q radicals; and finally electron transfer of each deprotonated Q radical to form the corresponding quercetin quinones. The quinone in which the carbonyl groups are the most separated has the lowest energy content, and is the most abundant quinone. The pathways are also intertwined. The calculations show that Q can pick up redox energy at various sites of the molecule which explains Q's ability to scavenge all sorts of reactive oxidizing species. In the described pathways, Q picked up, e.g., two hydroxyl radicals, which can be processed and softened by forming quercetin quinone.
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Registered trials
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