Polyphenol extraction from grape wastes: Solvent and pH effect

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Polyphenol extraction from grape wastes: Solvent and pH effect

World wine industry transforms 10% 25% of raw grapes into residues, mainly represented by lees, grape marcs, seeds and stems. These byproducts are a rich source of polyphenols and therefore they can be used to produce new added value products. The aim of this work was to determine the best process conditions (treatment time, % of ethanol and pH of the solvent) during solid-liquid extraction of ...

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Effect of the Drying Process on the Intensification of Phenolic Compounds Recovery from Grape Pomace Using Accelerated Solvent Extraction

In light of their environmental and economic interests, food byproducts have been increasingly exploited and valorized for their richness in dietary fibers and antioxidants. Phenolic compounds are antioxidant bioactive molecules highly present in grape byproducts. Herein, the accelerated solvent extraction (ASE) of phenolic compounds from wet and dried grape pomace, at 45 °C, was conducted and ...

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ژورنال

عنوان ژورنال: Agricultural Sciences

سال: 2013

ISSN: 2156-8553,2156-8561

DOI: 10.4236/as.2013.49b010