title: Antioxidant activity of flavonoids from Licania licaniaeflora.
abstract: In our screening program for antioxidants with DPPH radical scavenging activity we tested several flavonoids isolated from the leaves of Licania licaniaeflora (Chrysobalanaceae family) and identified by spectroscopic evidence, particularly with 1H and 13C NMR. All the isolated compounds exhibited DPPH radical scavenging activity: quercetin derivatives showed the strongest action, while the flavanone 8-hydroxy-naringenin and kaempferol 3-O-alpha-rhamnoside had the lowest.
authors.affiliation: Dipartimento di Chimica Bioorganica e Biofarmacia, Università di Pisa, via Bonanno 33, 56126 Pisa, Italy. braca@farm.unipi.it
authors.forename: Alessandra
authors.initials: A
authors.lastname: Braca
authors.forename: Chandra
authors.initials: C
authors.lastname: Sortino
authors.forename: Matteo
authors.initials: M
authors.lastname: Politi
authors.forename: Ivano
authors.initials: I
authors.lastname: Morelli
authors.forename: Jeannette
authors.initials: J
authors.lastname: Mendez
mesh_terms: D000975:Antioxidants / Q000302:isolation & purification / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D005419:Flavonoids / Q000302:isolation & purification / Q000494:pharmacology*; D010936:Plant Extracts / Q000302:isolation & purification / Q000494:pharmacology*; D018515:Plant Leaves
chemical_list: D000975:Antioxidants; D005419:Flavonoids; D010936:Plant Extracts