Results 261 to 270 of about 105,653 (308)

Oxygen Radical Absorbing Capacity of Anthocyanins

Journal of Agricultural and Food Chemistry, 1997
Anthocyanins are natural colorants belonging to the flavonoid family. They are widely distributed among flowers, fruits, and vegetables. Using the automated oxygen radical absorbance capacity (ORAC) assay developed in our laboratory, we determined the antioxidant capacity of 14 anthocyanins including the aglycons delphinidin, cyanindin, pelargonidin ...
Hong Wang, Guohua Cao, Ronald L. Prior
openaire   +1 more source

Variability of oxygen radical absorbance capacity (ORAC) in different animal species

Free Radical Research, 1998
The oxygen radical absorbance capacity (ORAC) was measured both in whole (ORAC-T) and deproteinized (ORAC-AS) plasma samples of human, pig, cow, rabbit, dog, cat, sheep, horse, dolphin, turkey, guinea-hen and chicken. In the 12 species, ORAC-T data, expressed as micromoles of peroxyl radicals trapped by 11 of sample, were found scattered between 8,600 ...
NINFALI, PAOLINO, ALUIGI G.
openaire   +3 more sources

Role of alkoxyl radicals on the fluorescein-based ORAC (Oxygen Radical Absorbance Capacity) assay

Free Radical Biology and Medicine, 2014
During the last decades the ORAC (Oxygen Radical Absorbance Capacity) assay has been widely employed to evaluate the in vitro antioxidant capacity of polyphenol-rich fruits, vegetables and beverages. The method employs fluorescein (FLH) as target molecule and AAPH (2,2'-azo-bis(2-amidinopropane)dihydrochloride) as the source of peroxyl radicals (ROO•).
E, Dorta, E, Atala, A, Aspee, H, Speisky, E, Lissi, C, Lopez-Alarcon   +5 more
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Comparison of the Total Oxyradical Scavenging Capacity and Oxygen Radical Absorbance Capacity Antioxidant Assays

Journal of Medicinal Food, 2007
Epidemiological studies have shown that phytochemicals in fruits and vegetables may decrease the incidence of cancer. The antioxidant activity of phytochemicals may be partially responsible for the reduced cancer risk. In this study, the antioxidant activity of several phytochemicals was compared using two different antioxidant assays: the oxygen ...
David P, Tomer, Lee D, McLeman, Seiga, Ohmine, Philip M, Scherer, Byron K, Murray, Kim L, O'Neill   +5 more
openaire   +2 more sources

Antioxidative capacity of Lactobacillus fermentum LF31 evaluated in vitro by oxygen radical absorbance capacity assay

Nutrition, 2014
The aim of this study was to evaluate the performance of the overall antioxidant of Lactobacillus fermentum LF31 bacterium with prebiotic supplement in human colon cultured cells.The antioxidant capability of L. fermentum LF31 has been assayed in vitro on human colon adenocarcinoma HT-29 cell line using the oxygen radical absorbance capacity method.The
Emanuele Persichetti, Alfredo De Michele, CODINI, Michela, TRAINA, Giovanna   +3 more
openaire   +2 more sources

Oxygen Radical Absorbing Capacity of Phenolics in Blueberries, Cranberries, Chokeberries, and Lingonberries

Journal of Agricultural and Food Chemistry, 2002
The antioxidant activity of phenolics in fruits of blueberry (Vaccinium corymbosum cv. Sierra), cranberry (Vaccinium macrocarpon cv. Ben Lear), wild chokeberry (Aronia melanocarpa), and lingonberry (Vaccinium vitis-idaea cv. Amberland) was determined in this study.
Wei, Zheng, Shiow Y, Wang
openaire   +2 more sources

Oxygen radical absorbance capacity (ORAC) and exercise-induced oxidative stress in trotters

European Journal of Applied Physiology, 2005
Strenuous exercise is a potent inducer of oxidative stress, which has been suggested to be associated with disturbances in muscle homeostasis, fatigue and injury. There is no comprehensive or uniform view of the antioxidant status in horses. We have previously shown that moderate exercise induces protein oxidation in trotters. The aim of this study was
Kinnunen, Susanna, Hyyppä, Seppo, Lehmuskero, Arja, Oksala, Niku, Mäenpää, Pekka, Hänninen, Osmo, Atalay, Mustafa   +6 more
openaire   +3 more sources