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EFFECT OF SUN EXPOSURE ON THE EVOLUTION AND DISTRIBUTION OF ANTHOCYANINS IN INTERSPECIFIC RED HYBRID WINEGRAPES

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dc.contributor.authorDadmun, Catherine
dc.contributor.chairMansfield, Anna K.
dc.contributor.committeeMemberSacks, Gavin Lavi
dc.date.accessioned2021-03-12T17:44:26Z
dc.date.available2021-03-12T17:44:26Z
dc.date.issued2020-08
dc.description121 pages
dc.description.abstractInterspecific hybrid winegrapes are economically important in areas where environmental pressures inhibit traditional Vitis vinifera production. To clarify the effect of vine microclimate on red hybrid wine color, skin extract anthocyanins were characterized via HPLC for shaded and unshaded fruit from three economically significant cool-climate hybrid cultivars (Vitis spp): Corot noir, Maréchal Foch, and Marquette. Light exposure and berry and air temperature were monitored in Corot noir to represent generalized vine microclimate. Across all cultivars, the samples that underwent the leaf-pulling treatment (exposed samples) did not have significantly different concentrations of total anthocyanins compared to the control (shaded samples). However, certain individual anthocyanins within each cultivar demonstrated different concentrations with the exposure treatment. This work is the first step in defining the evolution of anthocyanin profiles during interspecific hybrid grape ripening to allow cool-climate wine grape growers to optimize viticultural production methods for high-quality red hybrid wines.
dc.identifier.doihttps://doi.org/10.7298/jqan-pf11
dc.identifier.otherDadmun_cornell_0058O_11029
dc.identifier.otherhttp://dissertations.umi.com/cornell:11029
dc.identifier.urihttps://hdl.handle.net/1813/103164
dc.language.isoen
dc.subjectanthocyanin
dc.subjectinterspecific hybrid
dc.subjectleaf removal
dc.subjectripening
dc.subjectsunlight exposure
dc.subjectviticultural practice
dc.titleEFFECT OF SUN EXPOSURE ON THE EVOLUTION AND DISTRIBUTION OF ANTHOCYANINS IN INTERSPECIFIC RED HYBRID WINEGRAPES
dc.typedissertation or thesis
dcterms.licensehttps://hdl.handle.net/1813/59810
thesis.degree.disciplineFood Science and Technology
thesis.degree.grantorCornell University
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Food Science and Technology

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