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  • The antioxidant activity of three naturally occurring phenolic acids, caffeic (CaA), ferulic (FeA), and p-coumaric acid (CoA), and a synthetic compound, propyl gallate (PG), was evaluated in a foodrelated model system, a liposome dispersion of marine polyunsaturated fatty acids. Oxidation was induced by two different prooxidants, free iron ions and bovine hemoglobin (Hb). Continuous measurement of oxygen uptake was used to quantify the rate of lipid oxidation at steady state. Free iron-induced oxidation was reduced in the following order: PG > FeA > CoA. Caffeic acid worked as a prooxidant and increased the oxidation rate by a factor of 9. For Hb-induced oxidation, the relative efficiency was PG > CaA ~ FeA >> CoA. The antioxidant activity was also evaluated by four antioxidant capacity assays. In the Folin-Ciocalteu, ferric reducing/antioxidant power, and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays, the antioxidant activity followed the sequence PG > CaA > FeA > CoA. The order for the 2,2
  • The antioxidant activity of three naturally occurring phenolic acids, caffeic (CaA), ferulic (FeA), and p-coumaric acid (CoA), and a synthetic compound, propyl gallate (PG), was evaluated in a foodrelated model system, a liposome dispersion of marine polyunsaturated fatty acids. Oxidation was induced by two different prooxidants, free iron ions and bovine hemoglobin (Hb). Continuous measurement of oxygen uptake was used to quantify the rate of lipid oxidation at steady state. Free iron-induced oxidation was reduced in the following order: PG > FeA > CoA. Caffeic acid worked as a prooxidant and increased the oxidation rate by a factor of 9. For Hb-induced oxidation, the relative efficiency was PG > CaA ~ FeA >> CoA. The antioxidant activity was also evaluated by four antioxidant capacity assays. In the Folin-Ciocalteu, ferric reducing/antioxidant power, and 2,2-diphenyl-1-picrylhydrazyl radical scavenging assays, the antioxidant activity followed the sequence PG > CaA > FeA > CoA. The order for the 2,2 (en)
Title
  • Antioxidant activity of phenolic acids in lipid oxidation catalyzed by different prooxidants
  • Antioxidant activity of phenolic acids in lipid oxidation catalyzed by different prooxidants (en)
skos:prefLabel
  • Antioxidant activity of phenolic acids in lipid oxidation catalyzed by different prooxidants
  • Antioxidant activity of phenolic acids in lipid oxidation catalyzed by different prooxidants (en)
skos:notation
  • RIV/00216305:26310/09:PU87826!RIV12-MSM-26310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • I, Z(MSM0021630501)
http://linked.open...iv/cisloPeriodika
  • 57
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 303508
http://linked.open...ai/riv/idVysledku
  • RIV/00216305:26310/09:PU87826
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Phenolic antioxidants, lipid oxidation, iron, hemoglobin, oxygen uptake (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [2DCBD3BB7B50]
http://linked.open...i/riv/nazevZdroje
  • JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 2009
http://linked.open...iv/tvurceVysledku
  • Kristinová, Věra
http://linked.open...n/vavai/riv/zamer
issn
  • 0021-8561
number of pages
http://localhost/t...ganizacniJednotka
  • 26310
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