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dc.contributor.authorde Felice Renton, Leah Isobel
dc.date.accessioned2021-02-02T20:11:12Z
dc.date.available2021-02-02T20:11:12Z
dc.identifier.urihttp://hdl.handle.net/10464/15010
dc.description.abstractTotal tannin concentrations were monitored in Cabernet franc grapes in 2018 and 2019 from two vineyard areas in the Niagara Peninsula, Ontario. Total tannins were measured using the methyl cellulose precipitation (MCP) assay. In 2018, post-fermentation pressing treatments of 100kPA, 150kPA and 200kPA were applied with a control (no press treatment). In 2019, pre-fermentation pressing treatments in combination with juice removal (saignée) were applied with a control (no pre-fermentation treatment). Free sorting and consumer preference testing of the 2018 wines were evaluated using trained panellists and a consumer panel. Pre- and post-fermentation press treatments had little impact on the tannin concentrations in wines post fermentation. Observed trends over time suggest treatments have an influence in the behavior of tannin polymerization and stability, but these results are specific to vineyard site. This suggests that Cabernet franc varietal wines can be produced using low press-treatments without compromising the concentration of total tannins which may contribute to improved wine quality.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectTannins, pressing, extraction, methyl cellulose, consumer preferenceen_US
dc.titleHard Pressed to Find A Difference: Evaluating the total tannin content of Cabernet franc L cv. wines, made using pre- and post-fermentation pressing treatmentsen_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Biotechnologyen_US
dc.degree.levelMastersen_US
dc.contributor.departmentCentre for Biotechnologyen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US
refterms.dateFOA2021-08-15T02:08:10Z


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