Interactions of natural antioxidants with red grape pomace anthocyanins in a liquid model matrix: Stability and copigmentation effects
نویسندگان
چکیده
منابع مشابه
Stability of anthocyanins from red grape skins under pressurized liquid extraction and ultrasound-assisted extraction conditions.
The stability of anthocyanins from grape skins after applying different extraction techniques has been determined. The following compounds, previously extracted from real samples, were assessed: delphinidin 3-glucoside, cyanidin 3-glucoside, petunidin 3-glucoside, peonidin 3-glucoside, malvidin 3-glucoside, peonidin 3-acetylglucoside, malvidin 3-acetylglucoside, malvidin 3-caffeoylglucoside, pe...
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Anthocyanin colors and factors which stabilize and enhance these labile pigments were studied in this thesis. Berry anthocyanin colors were successfully improved by phenolic acid and natural plant extract addition. The results obtained contribute to the understanding of the chemical behavior of anthocyanins. The color quality of black currant wine was improved by the addition of crowberry juice...
متن کاملGreen extraction of antioxidants from different varieties of red grape pomace.
The extraction yield, phenolic content, anthocyanin content and antioxidant activity of extracts from different varieties of red grapes, Cabernet Sauvignon, Merlot, Petit Verdot, Syrah, Tempranillo and Tintilla, using pressurized green solvents have been analyzed. Two techniques were studied and compared: supercritical fluid extraction (SFE) with CO2 + 20% ethanol and pressurized liquid extract...
متن کاملThe Copigmentation of Anthocyanins and Its Role in the Color of Red Wine: A Critical Review
The phenomenon of copigmentation is due to molecular associations between pigments and other (usually noncolored) organic molecules in solution. These associations cause the pigments to exhibit far greater color than would be expected from their concentration. The phenomenon has long been recognized in flowers and fruits. Willstatter and Zollinger [122,123] noted the intensification of color on...
متن کاملEffects of Grape (vitis Labrusca B.) Peel and Seed Extracts on Phenolics, Antioxidants and Anthocyanins in Grape Juice
Grape peel and seed are good sources of important bioactive components such as phenolics, anthocyanins and antioxidants. Recovery of these components and their proper utilization is important for the development of functional foods. We have utilized the extracts of grape peel and seed obtained by ultrasonic-assisted (UAE) and supercritical fluid extractions (SFE) for the enrichment of Campbell ...
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ژورنال
عنوان ژورنال: Chemical Industry and Chemical Engineering Quarterly
سال: 2011
ISSN: 1451-9372,2217-7434
DOI: 10.2298/ciceq100701055s