2026-05-05T20:04:53Zhttps://uvadoc.uva.es/oai/request

oai:uvadoc.uva.es:10324/314332025-03-26T19:10:03Zcom_10324_31661com_10324_952com_10324_894com_10324_23040com_10324_954col_10324_31662col_10324_23041

Romero Diez, Rut 596cd20a38c2c32a 600 Rodríguez Rojo, Soraya a93bac369b6156c7 600 Cocero Alonso, María José 6d5fc38b8af88020 500 0000-0002-3047-2389 Duarte, Catarina M.M. 88e637bc-4c50-4796-a478-73cf59136260 500 Matias, Ana A. 18c1e23e-e0a3-45b4-8308-80d14ed9d846 500 Bronze, Maria Rosario 196e5396-2f31-4ef5-8125-3ef9eb91188d 500 2018-09-07T06:26:49Z 2019-04-01T23:40:14Z 2018 Food Chemistry, 2018, vol. 259, p.188–195 http://uvadoc.uva.es/handle/10324/31433 10.1016/j.foodchem.2018.03.119 Aging wine lees are water-wastes produced during the wine aging inside wood barrels that can be considered as alternative sources of bioactive compounds. Phenolic characterization and antioxidant activity (AA) measurements of wines lees solid-liquid extracts have been undertaken on a dry extract (DE) basis. Solvents with different polarities (water, methanol, ethanol, two hydroalcoholic mixtures and acetone) were used. Total phenolic (TPC) and total flavonoid contents (TFC) were determined. The mixture of 75:25(v/v) EtOH:H2O showed the highest values with 254mgGAE/gDE and 146mgCATE/gDE respectively. HORAC, HOSC and FRAP were used to determine the AA of the extracts being also highest for the mixture of 75:25(v/v) EtOH:H2O (4,690 µmolCAE/gDE, 4,527 µmolTE/gDE and 2,197 µmolTE/gDE, respectively). For ORAC method, methanol extract showed the best value with 2,771µmolTE /gDE. Correlations between TPC, TFC, phenolic compounds and AA were determined. Most relevant compounds contributing to AA were identified using data from mass spectrometry, being mainly anthocyanins. 2019-04-01 application/pdf eng Elsevier Ltd. info:eu-repo/semantics/openAccess Aging wine lees Phenolic Characterization Antioxidant activity LC-MS/MS Correlation study Anthocyanins Phenolic characterization of aging wine lees: correlation with antioxidant activities info:eu-repo/semantics/article SI ORIGINAL AgingWineLees_repositorio.pdf AgingWineLees_repositorio.pdf PHENOLIC CHARACTERIZATION OF AGING WINE LEES: CORRELATION WITH ANTIOXIDANT ACTIVITIES application/pdf 852300 https://uvadoc.uva.es/bitstream/10324/31433/1/AgingWineLees_repositorio.pdf 96472cccf001e406de2a0342ec56064e MD5 1 LICENSE license.txt license.txt text/plain 4250 https://uvadoc.uva.es/bitstream/10324/31433/2/license.txt 909e634ba52becf192e4e9b4bcde7863 MD5 2 THUMBNAIL AgingWineLees_repositorio.pdf.jpg AgingWineLees_repositorio.pdf.jpg IM Thumbnail image/jpeg 1881 https://uvadoc.uva.es/bitstream/10324/31433/3/AgingWineLees_repositorio.pdf.jpg f681c4f80574de2a81029d14de9128e3 MD5 3 10324/31433 oai:uvadoc.uva.es:10324/31433 2025-03-26 20:10:03.636 UVaDOC repositorio@uva.es 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