title: Flavone photoreactivity. UV-induced reactions in organic solvents and micellar systems.
abstract: Flavonoid photochemistry is a subject of interest in studies dealing with the role of phenolic compounds as screening pigments in plants. In order to contribute to the understanding of the processes involved in the interaction between flavonoids and UV radiation, we have studied UV-induced flavone photodegradation in both organic solvents and micellar systems. The results obtained show that flavone photosensitivity depends on the characteristics of the reaction environment and is influenced by the medium polarity and the charges on the micellar surface. Qualitative and quantitative differences in the photodegradation products were demonstrated by high performance liquid chromatography (HPLC) analysis.
authors.affiliation: Dipartimento di Fiscia, Ist. di Elettronica Quantistica CNR, Firenze, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Monici
authors.forename: N
authors.initials: N
authors.lastname: Mulinacci
authors.forename: P
authors.initials: P
authors.lastname: Baglioni
authors.forename: F F
authors.initials: FF
authors.lastname: Vincieri
mesh_terms: D002851:Chromatography, High Pressure Liquid; D003510:Cyclohexanes; D047309:Flavones; D005419:Flavonoids / Q000737:chemistry / Q000528:radiation effects*; D000432:Methanol; D008823:Micelles; D000644:Quaternary Ammonium Compounds; D011837:Radiation-Protective Agents; D012967:Sodium Dodecyl Sulfate; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet; D014466:Ultraviolet Rays
chemical_list: D003510:Cyclohexanes; D047309:Flavones; D005419:Flavonoids; D008823:Micelles; D000644:Quaternary Ammonium Compounds; D011837:Radiation-Protective Agents; D012997:Solvents; C013912:decyltrimethylammonium; D012967:Sodium Dodecyl Sulfate; C043562:flavone; D000432:Methanol