Free-radical-scavenging and antioxidant activities of secondary metabolites from reddened cv. Annurca apple fruits.
Forty-three secondary metabolites were isolated and characterized from cv. Annurca apple fruit, an apple variety cultivated in the south of Italy. This apple cultivar undergoes a typical reddening treatment after collection. All of the compounds were characterized on the basis of their spectroscopic data. The compounds were tested for their radical-scavenging and antioxidant activities by measuring their capacity to scavenge DPPH* (2,2'-diphenyl-1-picrylhydrazyl radical), H2O2, and NO (nitric oxide) and to inhibit the formation of methyl linoleate conjugated diene hydroperoxides or TBARS (thiobarbituric acid reactive species).
Cefarelli
Giuseppe
G
Dipartimento di Scienze della Vita, Seconda Università di Napoli, via Vivaldi 43, I-81100 Caserta, Italy.
D'Abrosca
Brigida
B
Fiorentino
Antonio
A
Izzo
Angelina
A
Mastellone
Claudio
C
Pacifico
Severina
S
Piscopo
Vincenzo
V
D000975:Antioxidants / Q000494:pharmacology*; D001713:Biphenyl Compounds; D005419:Flavonoids / Q000032:analysis* / Q000494:pharmacology; D016166:Free Radical Scavengers / Q000494:pharmacology*; D005638:Fruit / Q000737:chemistry* / Q000378:metabolism*; D006861:Hydrogen Peroxide; D008054:Lipid Peroxides / Q000737:chemistry; D027845:Malus / Q000737:chemistry*; D009569:Nitric Oxide; D010084:Oxidation-Reduction; D010636:Phenols / Q000032:analysis* / Q000494:pharmacology; D010851:Picrates; D059808:Polyphenols; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis / Q000737:chemistry
D000975:Antioxidants; D001713:Biphenyl Compounds; D005419:Flavonoids; D016166:Free Radical Scavengers; D008054:Lipid Peroxides; D010636:Phenols; D010851:Picrates; D059808:Polyphenols; D017392:Thiobarbituric Acid Reactive Substances; C008464:methyl linoleate hydroperoxide; D009569:Nitric Oxide; D006861:Hydrogen Peroxide; C004931:1,1-diphenyl-2-picrylhydrazyl