2011
DOI: 10.1007/s00204-011-0774-2
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Abstract: Recently, there has been growing interest in research into the role of plant-derived antioxidants in food and human health. The beneficial influence of many foodstuffs and beverages including fruits, vegetables, tea, coffee, and cacao on human health has been recently recognized to originate from their antioxidant activity. For this purpose, the most commonly methods used in vitro determination of antioxidant capacity of food constituents are reviewed and presented. Also, the general chemistry underlying the a… Show more

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Cited by 1,238 publications
(747 citation statements)
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References 334 publications
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“…Epidemiological studies have indicated that high consumption of dietary antioxidant nutrients is associated with low risk of many oxidative stress-induced diseases (Esfahani et al, 2011;Gülçin, 2012). These dietary antioxidant nutrients synergize with cellular reductants in scavenging of free-radicals and chelating transition metals that are catalysts in lipids peroxidation.…”
Section: Discussionmentioning
confidence: 99%
“…Epidemiological studies have indicated that high consumption of dietary antioxidant nutrients is associated with low risk of many oxidative stress-induced diseases (Esfahani et al, 2011;Gülçin, 2012). These dietary antioxidant nutrients synergize with cellular reductants in scavenging of free-radicals and chelating transition metals that are catalysts in lipids peroxidation.…”
Section: Discussionmentioning
confidence: 99%
“…They are usually supplemented in diets in case to inhibit the chain reactions of oxidation by averting the inception and extend steps leading for termination of the reaction, and delayed the oxidation process. Antioxidants are found in many variations such as all plants, microorganisms, fungi and even in animal tissues on earth [24][25][26][27] .…”
Section: Introductionmentioning
confidence: 99%
“…Estrutura do radical livre estável DPPH• reação que acontecem na determinação da capacidade antioxidante, ambos resultando de neutralização ou redução de um radical. Um desses mecanismos se baseia na transferência de elétrons (TE) e o outro na transferência de um átomo de hidrogênio (TAH) (Gülçin, 2012;Huang;Karadag et al, 2009;Amatatongchai et al, 2012). Ambos os mecanismo de transferência de hidrogênio e elétrons para o radical DPPH• podem ser vistos na equação 1 e 2, respectivamente;…”
Section: Método Do Dpph•unclassified
“…Em meios aquosos a solubilidade é bem menor e pode interferir na avaliação da capacidade antioxidante, tornando o radical DPPH• pouco acessível para a reação com as amostras antioxidantes, afetando assim a transferência de elétron ou de hidrogênio (Karadag et al, 2009;Magalhães et al, 2008 (Magalhães et al, 2008;Gülçin, 2012;Cieśla et al, 2012). No trabalho desenvolvido por Ozcelik; Lee; Min (2003), foi observado que há uma perda da absorbância da reação entre a solução de DPPH• e o antioxidante, em torno de 20 a 35% na presença de luz.…”
Section: Método Do Dpph•unclassified