About: Antioxidant activity depends on the type of pro-oxidant

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Antioxidant activities of phenolic compounds have been of great interest for fatty food producers, however the activities substantially vary from one food application to another. In the present study we evaluated antioxidant activities of four phenolic compounds - propyl gallate, caffeic, ferulic, and p-coumaric acid. The activity of these antioxidants has been studied in relation to the type of pro-oxidant in a lipid system. To study oxidation, an emulsion-related food model system consisting of marine phospholipids in liposomes was used, in which the consumption of dissolved oxygen was continuously recorded to calculate the rate of lipid oxidation. Iron ions (Fe2+, Fe3+) and bovine hemoglobin (Hb), were applied to initiate lipid oxidation. In iron mediated oxidation, the expected antioxidant, caffeic acid, showed strong pro-oxidant activity, increasing the oxidation rate by almost 10 times. Among the other antioxidants propyl gallate was the most active compound, while ferulic and p-coumaric acids s Antioxidant activities of phenolic compounds have been of great interest for fatty food producers, however the activities substantially vary from one food application to another. In the present study we evaluated antioxidant activities of four phenolic compounds - propyl gallate, caffeic, ferulic, and p-coumaric acid. The activity of these antioxidants has been studied in relation to the type of pro-oxidant in a lipid system. To study oxidation, an emulsion-related food model system consisting of marine phospholipids in liposomes was used, in which the consumption of dissolved oxygen was continuously recorded to calculate the rate of lipid oxidation. Iron ions (Fe2+, Fe3+) and bovine hemoglobin (Hb), were applied to initiate lipid oxidation. In iron mediated oxidation, the expected antioxidant, caffeic acid, showed strong pro-oxidant activity, increasing the oxidation rate by almost 10 times. Among the other antioxidants propyl gallate was the most active compound, while ferulic and p-coumaric acids s (en)
Title	Antioxidant activity depends on the type of pro-oxidant Antioxidant activity depends on the type of pro-oxidant (en)
skos:prefLabel	Antioxidant activity depends on the type of pro-oxidant Antioxidant activity depends on the type of pro-oxidant (en)
skos:notation	RIV/00216305:26310/10:PU87929!RIV12-MSM-26310___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM0021630501)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kristinová, Věra
http://linked.open.../riv/druhVysledku	O - Ostatní výsledky nezařaditelné do žádného z výše uvedených druhů výsledku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoké učení technické v Brně / Fakulta chemická
http://linked.open...dnocenehoVysledku	247145
http://linked.open...ai/riv/idVysledku	RIV/00216305:26310/10:PU87929
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Phenolic antioxidants, caffeic acid, marine lipids, lipid oxidation, prooxidants, iron, hemoglobin, oxygen uptake (en)
http://linked.open.../riv/klicoveSlovo	lipid oxidation prooxidants marine lipids hemoglobin Phenolic antioxidants iron oxygen uptake caffeic acid
http://linked.open...ontrolniKodProRIV	[6ACBAB642DB9]
http://linked.open...in/vavai/riv/obor	GM
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2010
http://linked.open...iv/tvurceVysledku	Kristinová, Věra
http://linked.open...n/vavai/riv/zamer	Multifunkční heterogenní materiály na bázi syntetických polymerů a biopolymerů
http://localhost/t...ganizacniJednotka	26310

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