RT Journal Article
T1 Recovery and concentration of antioxidants from winery wastes
A1 Soto, María Luisa
A1 Conde, Enma
A1 González López, Noelia
A1 Conde, María Jesús
A1 Moure, Andrés
A1 Sineiro Torres, Jorge
A1 Falqué, Elena
A1 Domínguez, Herminia
A1 Núñez García, María José
A1 Parajó, Juan Carlos
K1 Winery wastes
K1 Phenolics
K1 Adsorption
K1 Resins
K1 Radical scavengers
AB Grape and wine byproducts have been extensively studied for the recovery of phenolic compounds with antioxidant activity and a variety of biological actions. The selective recovery and concentration of the phenolic compounds from the liquid phase separated from further diluted winery wastes has been proposed. Adsorption onto non ionic polymeric resins and further desorption with ethanolic solutions was studied. Several commercial food grade resins were screened with the aim of selecting the most suited for the practical recovery of phenolic compounds with radical scavenging activity. Under the optimized desorption conditions (using Sepabeads SP207 or Diaion HP20 as adsorbents and eluting with 96% ethanol at 50 °C) a powdered yellow-light brown product with 50% phenolic content, expressed as gallic acid equivalents, was obtained. The radical scavenging capacity of one gram of product was equivalent to 2–3 g of Trolox
PB MDPI
YR 2012
FD 2012
LK http://hdl.handle.net/10347/21760
UL http://hdl.handle.net/10347/21760
LA eng
NO Soto, M.L.; Conde, E.; González-López, N.; Conde, M.J.; Moure, A.; Sineiro, J.; Falqué, E.; Domínguez, H.; Núñez, M.J.; Parajó, J.C. Recovery and Concentration of Antioxidants from Winery Wastes. Molecules 2012, 17, 3008-3024
NO The authors are grateful to grateful to the Spanish Ministry of Education and Science (ResearchProject reference ALG2006-05387, which had partial financial support from the FEDER funds of theEuropean Union), and to Xunta de Galicia (Research Project Ref. PGIDIT06 TAM38301PR) for thefinancial support of this work. The authors thank Miguel Estévez for his excellent technical support.EC thanks the Spanish MEC (PTA-2003-02-00194) and AM thanks the MEC (PTA-2003-01-00194)and the Isidro Parga Pondal Program (Xunta de Galicia)
DS Minerva
RD 1 may 2026