Abstract
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).
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antioxidants / pharmacology*
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Biphenyl Compounds
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Flavonoids / analysis*
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Flavonoids / pharmacology
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Free Radical Scavengers / pharmacology*
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Fruit / chemistry*
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Fruit / metabolism*
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Hydrogen Peroxide
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Lipid Peroxides / chemistry
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Malus / chemistry*
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Nitric Oxide
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Oxidation-Reduction
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Phenols / analysis*
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Phenols / pharmacology
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Picrates
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Polyphenols
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Thiobarbituric Acid Reactive Substances / analysis
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Thiobarbituric Acid Reactive Substances / chemistry
Substances
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Antioxidants
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Biphenyl Compounds
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Flavonoids
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Free Radical Scavengers
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Lipid Peroxides
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Phenols
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Picrates
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Polyphenols
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Thiobarbituric Acid Reactive Substances
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methyl linoleate hydroperoxide
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Nitric Oxide
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Hydrogen Peroxide
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1,1-diphenyl-2-picrylhydrazyl