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https://hdl.handle.net/2440/131558
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Type: | Journal article |
Title: | Crop load and plant water status influence the ripening rate and aroma development in berries of grapevine (Vitis vinifera L.) cv. Cabernet Sauvignon |
Author: | Previtali, P. Dokoozlian, N.K. Pan, B.S. Wilkinson, K.L. Ford, C.M. |
Citation: | Journal of Agricultural and Food Chemistry, 2021; 69(27):7709-7724 |
Publisher: | American Chemical Society |
Issue Date: | 2021 |
ISSN: | 0021-8561 1520-5118 |
Statement of Responsibility: | Pietro Previtali, Nick K. Dokoozlian, Bruce S. Pan, Kerry L. Wilkinson, and Christopher M. Ford |
Abstract: | Wine made from grapes subjected to accelerated ripening, an increasingly frequent phenomenon occurring in many wine regions due to peaks of heat and water stress, displays higher alcohol levels and lacks balance with color and flavor compounds. Herein, the rate of sugar accumulation of grapes was manipulated by varying the crop load and irrigation regime and the development of secondary metabolites was monitored by gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC). A 3-week delay in ripening correlated to an increase in the concentration of some monoterpenes and norisoprenoids and a greater decrease of green aroma compounds. Delayed ripening had a positive impact on the phenolic composition of grapes, displaying higher contents of total anthocyanins, total phenolics, quercetin glycosides, and polymeric pigments. A map of the chemical composition of grapes close to harvest allowed discrimination of compounds mainly responsive to delayed ripening from those driven by crop load or irrigation. |
Keywords: | delayed ripening sugar loading aroma development grape ripening fruit quality sugar/flavor nexus |
Description: | Published: June 30, 2021 |
Rights: | © 2021 American Chemical Society |
DOI: | 10.1021/acs.jafc.1c01229 |
Grant ID: | http://purl.org/au-research/grants/arc/IC170100008 |
Published version: | http://dx.doi.org/10.1021/acs.jafc.1c01229 |
Appears in Collections: | Agriculture, Food and Wine publications ARC Training Centre for Innovative Wine Production publications Aurora harvest 4 |
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