Antioxidant activity depends on the type of pro-oxidant

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F10%3APU87929" target="_blank" >RIV/00216305:26310/10:PU87929 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Antioxidant activity depends on the type of pro-oxidant

Popis výsledku v původním jazyce

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 marinephospholipids 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-

Název v anglickém jazyce

Antioxidant activity depends on the type of pro-oxidant

Popis výsledku anglicky

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 marinephospholipids 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-

Druh

O - Ostatní výsledky

CEP obor

GM - Potravinářství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů