The molecular basis of working mechanism of natural polyphenolic antioxidants

M Leopoldini, N Russo, M Toscano - Food chemistry, 2011 - Elsevier
In this review, we present a summary of the research work performed so far using high
accuracy quantum chemical methods on polyphenolic antioxidant compounds. We have …

Proanthocyanidins and tannin‐like compounds–nature, occurrence, dietary intake and effects on nutrition and health

C Santos‐Buelga, A Scalbert - Journal of the Science of Food …, 2000 - Wiley Online Library
Proanthocyanidins (syn condensed tannins) are complex flavonoid polymers naturally
present in cereals, legume seeds and particularly abundant in some fruits and fruit juices …

Antioxidant activity applying an improved ABTS radical cation decolorization assay

R Re, N Pellegrini, A Proteggente, A Pannala… - Free radical biology and …, 1999 - Elsevier
A method for the screening of antioxidant activity is reported as a decolorization assay
applicable to both lipophilic and hydrophilic antioxidants, including flavonoids …

Antioxidant and antiradical activities of flavonoids

S Burda, W Oleszek - Journal of agricultural and food chemistry, 2001 - ACS Publications
The relationship between the structure of 42 flavonoids and their antioxidant and antiradical
activities was elucidated by heat-induced oxidation in a β-carotene and linoleic acid system …

Interactions of flavonoids with iron and copper ions: a mechanism for their antioxidant activity

L Mira, M Tereza Fernandez, M Santos… - Free radical …, 2002 - Taylor & Francis
The metal chelating properties of flavonoids suggest that they may play a role in metal-
overload diseases and in all oxidative stress conditions involving a transition metal ion. A …

[PDF][PDF] Los flavonoides: propiedades y acciones antioxidantes

S Martínez-Flórez, J González-Gallego… - Nutrición …, 2002 - academia.edu
Los flavonoides son compuestos fenólicos constituyentes de la parte no energética de la
dieta humana. Se encuentran en vegetales, semillas, frutas y en bebidas como vino y …

The antioxidant activity of regularly consumed fruit and vegetables reflects their phenolic and vitamin C composition

AR Proteggente, AS Pannala, G Paganga… - Free radical …, 2002 - Taylor & Francis
Recent studies are emphasising the importance and putative modes of action of specific
flavonoids as bioactive components of the diet in in vivo and in vitro models. Thus, it is …

Absorption and metabolism of polyphenols in the gut and impact on health

A Scalbert, C Morand, C Manach, C Rémésy - Biomedicine & …, 2002 - Elsevier
Polyphenols are the most abundant antioxidants in the human diet. They show a
considerable structural diversity, which largely influences their bioavailability. Phenolic acids …

Characterization of the radical scavenging activity of lignins––natural antioxidants

T Dizhbite, G Telysheva, V Jurkjane, U Viesturs - Bioresource technology, 2004 - Elsevier
The present work is devoted to studies of the radical scavenging properties of lignins, which
are recognized as efficient antioxidants of natural origin. Radical scavenging efficiency of a …

[HTML][HTML] Plant polyphenol antioxidants and oxidative stress

I Urquiaga, F Leighton - Biological research, 2000 - SciELO Chile
In recent years there has been a remarkable increment in scientific articles dealing with
oxidative stress. Several reasons justify this trend: knowledge about reactive oxygen and …