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Grape extract rich in polyphenols (∼129±32mg of gallic acid equivalents per g of dry extract) was obtained from the pomaces of Cannonau grapes by homogenization in an ethanol/water mixture. The efficacy of ultrasounds in speeding up the extraction kinetics of polyphenols was demonstrated. The extract was incorporated in liposomes and PEVs (penetration enhancer containing vesicles) with Labrasol® or...
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