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Bunch exposure effects on the quality of pinot noir and chardonnay fruit and base wines for cool climate sparkiling wine production
conference contributionposted on 2023-05-23, 07:32 authored by Fiona Kerslake, Joanna JonesJoanna Jones, Dugald CloseDugald Close, Robert Dambergs
Sparkling wine production in cool climates has particular focus on the composition of the phenolics present in the finished wine, however little is to be found in the literature as to how fruit can be manipulated to produce the desired result. A feature of cool climates is longer day length and therefore increased exposure to Ultra-Violet (UV) light. Hydroxycinnamates (important for sparkling wine mouthfeel and texture) have been shown to respond to increased UV-B exposure and through the use of scanning spectrophotometry, the impact of increased bunch exposure through leaf removal was investigated in Chardonnay and Pinot Noir across two sites in Tasmania, Australia. Removing leaves before flowering was shown to drive the differences in these base wines from the base wines made from vines with no leaves removed and the key wavelengths of 260, 310 and 330 nm are indicative of hydroxycinnamates. This study fully encompassed the notion of vine to wine research.
Publication titleProceedings of the 18th International Symposium of the Group of International Experts of Vitivinicultural Systems for Cooperation
Department/SchoolTasmanian Institute of Agriculture (TIA)
Place of publicationFaculdade de Ciências da Universidade do Porto – Portugal
Event title18th Symposium of the Group of International Experts of Vitivinicultural Systems for Cooperation (GiESCO 2013)
Date of Event (Start Date)2013-07-07
Date of Event (End Date)2013-07-11
Rights statementCopyright 2013 The Author - The University is continuing to endeavour to trace the copyright owner(s) and in the meantime this item has been reproduced here in good faith. We would be pleased to hear from the copyright owner(s).