vitis/antioxidant

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Anthocyanin phytochemical profiles and anti-oxidant activities of Vitis candicans and Vitis doaniana.

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BACKGROUND Grapes are one of the most important fruit crops in the world. The quality of red grape berries greatly depends on skin colour, mainly due to the anthocyanin profile. Today, the American Vitis species have the greatest potential for breeding work. They have multiple resistance properties

Differences in the phenolic composition and antioxidant properties between Vitis coignetiae and Vitis vinifera seeds extracts.

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Phenolic compounds were extracted from European and Japanese grapevine species (Vitis vinifera and V. coignetiae) seeds using 80% methanol or 80% acetone. The total content of phenolic compounds was determined utilizing Folin-Ciocalteu's phenol reagent, while the content of tannins was assayed by

Antioxidant properties of raisins (Vitis vinifera L.).

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Currants and sultanas (Vitis vinifera L., Family Vitaceae) are dried vine products produced in Greece and used widely in the Mediterranean diet. We investigated the polar methanol extracts from the raisins for the antiradical activity, polyphenol content, cytotoxicity in peripheral blood mononuclear

Antioxidant activities of grape (Vitis vinifera) pomace extracts.

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Antioxidant-rich fractions were extracted from grape (Vitis vinifera) pomace using ethyl acetate, methanol, and water. The extracts were screened for their potential as antioxidants in different models. The ethyl acetate, methanol, and water extracts showed 76, 87.1, and 21.7% antioxidant activities

Antihypertensive Angiotensin I-Converting Enzyme Inhibitory Activity and Antioxidant Activity of Vitis hybrid-Vitis coignetiae Red Wine Made with Saccharomyces cerevisiae.

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A Vitis hybrid-Vitis coignetiae red wine was vinified by fermentation of a mixture of a Vitis hybrid-Vitis coignetiae must with Saccharomyces cerevisiae KCTC 7904 at 25℃ for 10 days. The Vitis hybrid-Vitis coignetiae red wine showed high antihypertensive angiotensin I-converting enzyme (ACE)

Postharvest UV-C irradiation stimulates the non-enzymatic and enzymatic antioxidant system of 'Isabel' hybrid grapes (Vitis labrusca×Vitis vinifera L.).

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Ultraviolet light type C (UV-C) was studied as a tool to increase enzymatic and non-enzymatic antioxidant defenses and phytochemical levels in 'Isabel' grapes (Vitis labrusca×Vitis vinifera L.). Grapes were exposed to 0, 0.5, 1.0, 2.0, or 4.0kJm-2 UV-C and stored for 1, 3, or 5days post-treatment.

Chunganenol: an unusual antioxidative resveratrol hexamer from Vitis chunganensis.

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Chunganenol (1), an unusual resveratrol hexamer, has been isolated from Vitis chunganensis. Its unprecedented structure has been assigned through detailed analyses of 2D NMR data and consideration of oligostilbene biosynthetic pathway, representing the first highly condensed stilbene oligomer from

Antioxidant activity of tannin components from Vaccinium vitis-idaea L.

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Reactive oxygen molecules have been implicated as important pathological mediators in many clinical disorders and periodontal disease. To provide possible alternative treatment of periodontal disease, six tannins isolated from Vaccinium vitis-idaea L. were evaluated for anti-lipid peroxidation,

Antioxidative responses in Vitis vinifera infected by grapevine fanleaf virus.

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The antioxidative response of grapevine leaves (Vitis vinifera cv. Trebbiano) affected by the presence of grapevine fanleaf virus was studied during the summer of 2010 at three different harvest times (July 1st and 26th, and August 30th). At the first and second harvest, infected leaves showed

Antioxidant and antiproliferative activities of twenty-four Vitis vinifera grapes.

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Grapes are rich in phytochemicals with many proven health benefits. Phenolic profiles, antioxidant and antiproliferative activities of twenty-four selected Vitis vinifera grape cultivars were investigated in this study. Large ranges of variation were found in these cultivars for the contents of

Profile of bioactive compounds from grape pomace (Vitis vinifera and Vitis labrusca) by spectrophotometric, chromatographic and spectral analyses.

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The aim of this study was to characterize grape pomace (GP) from winemaking byproducts of different grape samples (Cabernet Sauvignon-CS; Merlot-ME; Mix composed of 65% Bordeaux, 25% Isabel and 10% BRS Violet-MI and Terci-TE) with a view to exploiting its potential as a source of bioactive compounds

Phenolic profiles and antioxidant properties of young wines made from Yan73 (Vitis vinifera L.) and Cabernet Sauvignon (Vitis vinifera L.) grapes treated by 24-epibrassinolide.

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The grape berries of two varieties, Yan73 (Vitis vinifera L.) and Cabernet Sauvignon (CS) (Vitis vinifera L.) were treated with 0.40 mg/L 24-epibrassinolide (EBR), 1.00 mg/L brassinazole (Brz), and deionized water (control), at the veraison period. The EBR treatment significantly increased total

Accumulation of Phenolic Compounds and Antioxidant Capacity during Berry Development in Black 'Isabel' Grape ( Vitis vinifera L. x Vitis labrusca L.)

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Grapes are one of the most economically important fruits in the world and are of considerable benefit to human health due to their phenolic compounds. The black 'Isabel' grape (V. vinifera L. xV. labrusca L.) is widely grown in the Black Sea region of Turkey, where it is

[Acute kidney injury by glycerol: antioxidant effect of Vitis vinifera L].

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OBJECTIVE The Acute Kidney Injury (AKI) is the most serious complication of rhabdomyolysis. In this syndrome, the delivery of heme pigment induces an injury that distinguishes itself by glomerular vasoconstriction and direct cellular toxicity with oxidative component. The renoprotection with

Resveratrol derivatives from the roots of Vitis thunbergii.

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Investigating the constituents of the roots of Vitis thunbergii led to the isolation of four new resveratrol derivatives, vitisinols A-D (1-4), together with (+)-epsilon-viniferin, (-)-viniferal, ampelopsin C, miyabenol A, (+)-vitisin A, and (+)-vitisin C. The structures of these 10 compounds were

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