Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1884550 | Radiation Physics and Chemistry | 2008 | 6 Pages |
Abstract
The reaction of OH with naringenin (4′,5,7-trihydroxyflavanone) in the presence of air induced the formation of the hydroxylation product eriodictyol (3′,4′,5,7-tetrahydroxyflavanone). Its yield was dependent on pH. The initial degradation yield of naringenin was Gi(-Nar)=(2.5±0.2)×10−7 mol dm−3 J−1. For the reaction with OH, a rate constant k (OH+naringenin)=(7.2±0.7)×109 M−1 s−1 was determined. In the presence of N2O and NaN3/N2O, no eriodyctiol was formed. Apigenin (4′,5,7-trihydroxyflavon) was detected as decay product of the naringenin phenoxyl radicals. In Ar-saturated solutions, naringenin exhibited a pronounced radiation resistance, G(-naringenin) ∼0.3×10−7 mol dm−3 J−1.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Tristan O. Nagy, Karin Ledolter, Sonja Solar,