Please use this identifier to cite or link to this item: 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
Appears in Collections:Agriculture, Food and Wine publications
ARC Training Centre for Innovative Wine Production publications
Aurora harvest 4

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