Effect of the solvent on the extraction of polyphenols from distillery stillage and on their antioxidant activity

The increase in the costs of storage and disposal post-production residues has resulted search for new directions their recycling, which is closely related to necessity protecting natural environment promoting a circular economy. Moreover, apparent interest shown by food market raw materials with high antioxidant activity implies an increasing use by-products. objective study was determine effect type concentration solvent on efficiency extracting polyphenols from distillery stillage as well using several solvents: methanol:water (70:30 v/v), (100:0 ethanol:water v/v) or v/v). DPPH radical method used obtained extracts. normalised variable (NV) statistical measure (MS) were determined, based effectiveness solvents evaluated. highest polyphenolic content extraction compounds stillage.