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The Photodegradation of Quercetin: Relation to Oxidation

descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 26 Jul 2012 English Publisher:MDPI AGJournal:Molecules, volume 17, pages 8,898-8,907 (eissn: 1420-3049, Copyright policy )
Authors: DALL'ACQUA, STEFANO; MIOLO, GIORGIA; INNOCENTI, GABBRIELLA; S. Caffieri;

doi: 10.3390/molecules17088898

pmid: 22836209

pmc: PMC6268119

handle: 11577/2533113

The Photodegradation of Quercetin: Relation to Oxidation

Abstract

The photostability of quercetin in alcoholic solutions was studied. Both UVA and UVB light induced degradation of quercetin, yielding a single product 1 deriving from oxidation and addition of an alcohol molecule to the 2,3 double bond. The same mechanism operated when quercetin was dissolved in alkaline solutions, and again a product 2 due to oxidation and addition of water was characterized. Comparison with quercetin analogs confirmed that, despite the presence of five hydroxy groups in quercetin, those in positions 3, 3′, and 4′ are mainly involved in the antioxidant activity of the compound , as well as in its photolability.

Related Organizations
Keywords

Ultraviolet Rays, Rutin, Organic chemistry, photostability, Article, quercetin, QD241-441, quercetin; photostability; photodegradation, Drug Stability, Ammonia, Apigenin, Kaempferols, Flavonoids, Ethanol, Methanol, Hydrogen-Ion Concentration, Photochemical Processes, Solutions, Solvents, Quercetin, Spectrophotometry, Ultraviolet, photodegradation, Oxidation-Reduction

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    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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    influence
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
104
Top 1%
Top 10%
Top 10%
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gold
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