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dc.contributor.authorFernández-Marín, María Isabel
dc.contributor.authorF. Guerrero, Raúl
dc.contributor.authorPuertas, Belén
dc.contributor.authorGarcía-Parrilla, María Carmen
dc.contributor.authorGonzález Collado, Isidro
dc.contributor.authorCantos-Villar, Emma
dc.contributor.otherQuímica Orgánicaen_US
dc.date.accessioned2018-06-01T10:30:02Z
dc.date.available2018-06-01T10:30:02Z
dc.date.issued2013
dc.identifier.urihttp://hdl.handle.net/10498/20581
dc.description.abstractAims : Stilbene-enriched grape is an interesting new food product with numerous health-promoting properties, mainly due to its high added-value compound content, notably resveratrol. The aim of this study was to evaluate the effects of different elicitors, alone or in combination with ultraviolet C light (UVC) postharvest treatment, on stilbene concentration in grapes. Methods and results : Three preharvest treatments were tested, namely benzothiadiazole, (BTH), methyl jasmonate (MEJA) and chitosan (CHIT). After harvesting, these treatments were combined with UVC postharvest treatment. The stilbene extraction method was validated method. Moreover, and grape quality was evaluated. Of the preharvest treatments, only BTH significantly increased trans-resveratrol concentration in grape, but this appears to be linked to a ripening delay. When pre- and postharvest treatments were combined, only the MEJA-UVC combination was successful in reducing by three days the day of maximum induction of stilbenes (trans resveratrol and piceatannol). Conclusion: The MEJA-UVC combination reached similar grape trans-resveratrol contents than UVC alone, but additionally the time to reach maximum trans-resveratrol after the UVC treatment was reduced by three days and therefore grape quality was preserved. Significance and impact of the study: The achieved results provide a potential treatment combination that allows functional grapes to be obtained in a shorter period than with UVC light alone, making it more applicable.en_US
dc.formatapplication/pdfen_US
dc.language.isoengen_US
dc.publisherVigne et Vin Pulbications Internationalsen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.sourceJournal International des Sciences de la Vigne et du Vin2013, 47, n°3, 203-212en_US
dc.subjectbenzothiadiazoleen_US
dc.subjectchitosanen_US
dc.subjectmethyl jasmonateen_US
dc.subjectresveratrolen_US
dc.subjectpiceatannolen_US
dc.subjectviniferinsen_US
dc.subjectfunctional grapeen_US
dc.subjectultraviolet C lighten_US
dc.titleImpact of preharvest and postharvest treatment combinations on increase of stilbene content in grapeen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.identifier.doi10.20870/oeno-one.2013.47.3.1548


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional