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Title

Postharvest UV-C-Irradiated Grapes as a Potential Source for Producing Stilbene-Enriched Red Wines

AuthorsCantos Villar, Emma; Espín de Gea, Juan Carlos ; Fernández, M. José ; Oliva, José; Tomás Barberán, Francisco
KeywordsHPLC-DAD-MS-MS
Piceatannol
Postharvest
Resveratrol
Stilbene
Traditional maceration
UV-C irradiation
Viniferin
Wine
Wine grape
Issue Date24-Jan-2003
PublisherAmerican Chemical Society
CitationJournal of Agricultural and Food Chemistry 51(5): 1208-1214 (2003)
AbstractThe use of postharvest controlled irradiation by UV pulses is proposed as a potential method to produce stilbene-enriched red wine. “Monastrell” grapes were UV-C-irradiated to increase stilbene content. The main inducible stilbenes were resveratrol and piceatannol, which are molecules with reported health-beneficial activities. The evolution of both compounds was followed in the different steps of an “analytical” traditional maceration wine-making process. The final wine made from UV-C-irradiated grapes was enriched about 2- and 1.5-fold in resveratrol and piceatannol, respectively, when compared to the control wine. In addition, no difference was detected regarding the standard enological parameters (color, acidity, etc.). It is strongly suggested that, with the use of more susceptible wine grapes to induce bioactive stilbenes upon UV-C irradiation, the stilbene-enrichment of wine can be much higher.
Description7 pages, 4 tables, 2 figures.
Publisher version (URL)http://dx.doi.org/10.1021/jf020939z
URIhttp://hdl.handle.net/10261/17960
DOI10.1021/jf020939z
ISSN0021-8561
E-ISSN1520-5118
Appears in Collections:(CEBAS) Artículos
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