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dc.contributorVirginia Techen_US
dc.contributor.authorZoecklein, B. W.en_US
dc.contributor.authorDevarajan, Y. S.en_US
dc.contributor.authorMallikarjunan, K.en_US
dc.contributor.authorGardner, D. M.en_US
dc.date.accessioned2014-07-10T13:56:42Z
dc.date.available2014-07-10T13:56:42Z
dc.date.issued2011-09-01
dc.identifier.citationZoecklein, B. W.; Devarajan, Y. S.; Mallikarjunan, K.; Gardner, D. M., "Monitoring Effects of Ethanol Spray on Cabernet franc and Merlot Grapes and Wine Volatiles Using Electronic Nose Systems," Am. J. Enol. Vitic September 2011 vol. 62 no. 3 351-358. DOI: 10.5344/ajev.2011.11005
dc.identifier.issn0002-9254
dc.identifier.urihttp://hdl.handle.net/10919/49440
dc.description.abstractThe ability of two electronic nose systems (conducting polymer and surface acoustic wave-based) to differentiate volatiles of grapes and wines treated with an aqueous ethanol spray (5% v/v) at veraison was evaluated. Ethanol spray induced fruit ethylene production immediately posttreatment, which then declined progressively. The electronic nose evaluations of grape volatiles were compared with Cabernet franc and Merlot physicochemistry and with wine gas chromatographic and aroma sensory data. Canonical discriminant and principal component analysis found that both electronic nose systems and the physicochemical measures (Brix, TA, pH, color intensity and hue, total phenols, glycosides, and berry weight) were able to discriminate between ethanol-treated and untreated grapes and wines for both cultivars. Grape physicochemical treatment differences were due mainly to variations in hue, phenolic-free glycosides, and total phenols. Aroma sensory evaluations using a consumer panel differentiated between ethanol treatments and controls for Merlot, but not for Cabernet franc wines.
dc.description.sponsorshipVirginia Wine Board
dc.description.sponsorshipVirginia Agricultural Council
dc.language.isoen_US
dc.publisherAmerican Society for Enology and Viticulture
dc.subjectElectronic nosesen_US
dc.subjectVolatilesen_US
dc.subjectMerloten_US
dc.subjectCabernet francen_US
dc.subjectVinifera l. grapeen_US
dc.subjectGlycosyl-glucoseen_US
dc.subjectAroma compoundsen_US
dc.subjectFruit maturityen_US
dc.subjectEthephonen_US
dc.subjectSauvignonen_US
dc.subjectEthyleneen_US
dc.subjectDiscriminationen_US
dc.subjectAccumulationen_US
dc.subjectMaturationen_US
dc.subjectBiotechnology & applied microbiologyen_US
dc.subjectFood science & technologyen_US
dc.subjectHorticultureen_US
dc.titleMonitoring Effects of Ethanol Spray on Cabernet franc and Merlot Grapes and Wine Volatiles Using Electronic Nose Systemsen_US
dc.typeArticleen_US
dc.identifier.urlhttp://www.ajevonline.org/content/62/3/351.full
dc.date.accessed2014-07-09
dc.title.serialAmerican Journal of Enology and Viticulture
dc.identifier.doihttps://doi.org/10.5344/ajev.2011.11005
dc.type.dcmitypeTexten_US


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