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Showing 1 to 20 of 43 for “"ORAC"”.
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Relationship of dietary antioxidant intake, antioxidant serum capacity, physical activity and inflammation in breast cancer survivors and individuals without a history of cancer
… TNF alpha) and serum antioxidant capacity (ORAC) at Virginia Tech. Results: Anthropometrics and inflammation were higher, and FRAP and ORAC lower in breast cancer survivors compared to individuals without cancer, although not significant. There was a significant direct relationship between …
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Evaluation of natural antioxidants
… LDL inhibition activities but not to measured ORAC activities. These findings suggested that behaviours of antioxidants in the small unilamellar vesicles of the LPIC assay were similar to that in the LDL assay but not to the aqueous phase based ORAC assay. The LPIC assay may therefore be a …
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Broccoli Components as Antioxidants: The Role of Isothiocyanates as Redox Modifiers via Glutathiolation
… activity (oxygen radical absorbance capacity; ORAC), and measures of cellular antioxidation (prevention of DNA oxidative damage and oxidation of the biomarker dichlorofluorescein, DCFH, in HepG2 cells) using hydrophilic and lipophilic extracts of broccoli. For lipophilic extracts, ORAC …
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Characterization of antioxidant activities from fruits rich in delphinidin or malvidin anthocyanins
… measured by Oxygen Radical Absorbance Capacity (ORAC) and ABTS assays. Anthocyanin antioxidant capacity index (AACI), derived from the product of antioxidant (ORAC) activity for each of major anthocyanin present in blackcurrant and grape, was also used to determine whether the antioxidant …
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Effect of grape seed extract on oxidative, color and sensory stability of pre-cooked, frozen, re-heated beef sausage model system
… BHA, propyl gallate and ascorbic acid using the ORAC assay. All sample solutions were prepared to contain 1.8 gm sample/10 ml solvent. The highest antioxidant activity was observed for the grape seed extract sample (359.75 µM TE), while the lowest was observed for BHA, propyl gallate and rosemary …
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Characterization of antioxidant activities of soybeans and assessment of their bioaccessibility after in vitro digestion
… (TPC), Oxygen Radical Absorbance Capacity (ORAC), and DPPH™ radical scavenging activities. In order to evaluate efficient preparation methods for soybean antioxidants, three Virginia-grown soybeans were extracted using different extraction strategies. The extraction techniques included …
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Honey as a Source of Natural Antioxidants
… by the oxygen radical absorbance capacity (ORAC) assay, was found to be similar to the antioxidant activity of many fruits and vegetables on a fresh weight basis. The ORAC values of honeys from various floral sources were significantly correlated with the in vitro inhibitory effect of honeys …
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Optimizing the Extraction of Phenolic Antioxidant Compounds from Peanut Skins
… based on total phenolic content (TPC), ORAC (oxygen radical absorbance capacity) activity and <i>trans</i>-resveratrol content. The protective effect of peanut skin extracts (PSE) against hydrogen peroxide (H₂O₂)-induced oxidative stress in human brain microvascular endothelial cells …
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Value of Raisins for Reduction of Oxidative Stress, Endothelial Dysfunction, and Inflammation in Obesity
… serum Oxygen Radical Absorbance Capacity, ORAC), inflammation (serum C-reactive protein, CRP; interleukin-6, IL-6), endothelial function (serum soluble intercellular adhesion molecule-1, sICAM-1; soluble vascular adhesion molecule-1, sVCAM-1), and metabolic measures (free fatty acids (FFA), …
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Evaluation of the antioxidant and anti-diabesity potential of cyclopia maculata using in vitro non-cell based screening models
… and iron reducing ability. The DPPH, ABTS, ORAC and FRAP assays were employed. Anti-diabesity potential was assessed in terms of the inhibition of the digestive enzymes, α-glucosidase and pancreatic lipase
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Potential cardioprotective effect of chronic, moderate consumption of reduced-alcohol wine in a rat model of pulmonary hypertension
… the wine was determined for 4 weeks by analysing ORAC values, total phenolic concentration, anthocyanin and catechin concentrations. Prior to randomisation, and at day 28, echocardiography (VEVO 2100, Visualsonics Inc.) was performed to evaluate pulmonary artery acceleration time (PAAT), an …
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Antioxidant Potential in Broccoli and Observations on Flavor in a Segregating Broccoli Population (Brassica Oleracea)
… capacity of broccoli extracts determined by ORAC or DCFH-DA showed that antioxidant capacity of water extracts from the ORAL assay correlated with antioxidant activity from DCFH-DA assay, but that for lipid extracts the ORAC assay could not predict antioxidant activity in cell culture. …
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Impact of agronomical and technological factors and the oxidative protection of the matrix on polysulfide formation and atypical ageing in wine
… the oxygen radical absorbance capacity (ORAC) in relation to ATA development was investigated by analysing a selection of different white wines from different origins in Italy. A tendency of a correlation between ORAC and AAP formation was demonstrated for the first time. In contrast, a …
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Development of a GC-MS method and analysis of phenolic acids in fruit and spice matrices and evaluation of their antioxidant capacity
… of all selected samples were examined using the ORAC assay. In addition, the antioxidant capacity of the identified free and bound phenolic acids was measured by different assays including ORAC, ABTS, DPPH and FCR. The results indicate that hydrophilic antioxidants are higher than lipophilic …
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Investigations on the antifungal and cancer modulating properties of extracts from selected species of Tulbaghia
… peroxidation. An increase was noted in hepatic ORAC values for rats consuming T. violacea and T. al/iacea. However, no correlation was observed between the phenolic intake by the rats and the increased hepatic ORAC levels. In this study, pre-treatment with aqueous extracts of T. violacea, T. …
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Potential for selection of new peanut genotypes with enhanced polyphenol antioxidant content
… compounds and corresponded to respective ORAC assay values. The shotgun proteomics revealed differential protein abundance in the high antioxidant expressing RIL in carbohydrate and protein metabolism, stilbene and flavonoid biosynthesis, anabolic and catabolic pathways. These metabolic …
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The Acute Effects of Nut Ingestion on Plasma Levels of Polyphenol Compounds, Biomarkers of Antioxidant Status, and Lipid Peroxidation
… (FRAP) and oxygen radical absorbance capacity (ORAC) reached its highest point at 150 min post-consumption of nut diet. Also, a gradual reduction in the susceptibility of plasma to lipid peroxidation was observed 90 minutes after nut diets. No changes were observed following consumption of …
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Cultivation and Nutritional Constituents of Virginia Grown Edamame
… there were no significant differences in the ORAC assay. "BeSweet 292" had significantly more reducing activity in the DPPH assay than Sunrise in 2009. Isoflavones were measured in 2008 and 2009 at harvest and temporally in 2009. Of all isoflavones, Malonyl genistin had the highest …
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Investigating systemic effects of chronic stress on hepatic and cardiac tissue in female Wistar rats
… (superoxide dismutase [SOD], catalase, and ORAC) and oxidative damage marker (malondialdehyde adducts) in whole-cell lysates and subcellular fractions. Autophagy-related proteins (p62, LC3B, Beclin-1, SNAP29, SOD1/2) were quantified by Western blotting. CRS induced mild oxidative damage …
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Postprandial Effects of Pecans Ingestion on Plasma Level of Nutrients, Polyphenolic Compounds and Biomarkers of Antioxidant Status in Human Volunteers
… after the baseline draw for the pecan meal. The ORAC and FRAP assays each reached their highest level at 2-h (ground pecan, <em>p </em>= 0.001 and whole pecan, <em>p </em>= 0.002). TEARS decreased the greatest at 8-h (<em>p </em>= 0.013) and oxidized LDL at 3-h (<em>p </em>= 0.018). Our results …
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