terclim by ICS banner
IVES 9 IVES Conference Series 9 The key role of vineyard parcel in modifying flavor compounds of Cabernet Sauvignon grapes

The key role of vineyard parcel in modifying flavor compounds of Cabernet Sauvignon grapes

Abstract

To produce premium wines in a specific region is the goal of local oenologists. This study aimed to investigate the influence of soil properties on the flavoromics of Cabernet Sauvignon grapes to provide a better insight into single-vineyard wines. Six commercial Cabernet Sauvignon vineyards were selected in the Manas region to collect berries at three harvest ripeness in three seasons (2019–2021). The six vineyards had little difference in mesoclimate conditions while varying greatly in soil composition. Results showed that the harvest date of two adjacent vineyards (within 200 m) could vary up to two weeks. High vineyard pH (> 8.5) could accelerate grape ripening rate, increase grape anthocyanin and flavonol concentration while decreasing C6/C9-related aromas. Vineyards with moderate nutrition were beneficial for accumulating norisoprenoids in grapes. Differently expressed genes involved in the pathways of secondary metabolites were selected through transcriptome analysis, revealing the regulation of grape flavor compounds influenced by vineyard soil heterogeneity. This work provides molecular and chemical mechanisms underlying single-vineyard wines and a theoretical basis for targeted wine production.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Haocheng Lu1,2, Mengbo Tian1,2, Ning Shi1,2, Jun Wang1,2*

1 Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
2 Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, Beijing 100083, China

Contact the author*

Keywords

Single vineyard wine, soil, phenolics, aromas, transcriptome

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

MONITOR SOME KEY PARAMETERS THROUGH THE IMPLEMENTATION OFCONTINUOUS CONTROL SYSTEMS OF THE MUST-WINE DURING MACERATION-FERMENTATION IN RED WINEMAKING TO MANAGE OPERATIONS IN “AUTOMATION”

This study is aimed to develop a complete tool for the winemaker with, complete and targeted “winemaking recipes” that can be adapted to criteria set by the winemaker, such as: grape variety, grape health status, degree of ripening, desired wine, redox status throughout the alcoholic fermentation.
To get such aim, specific sets of experiments using red grape juices from different varieties (Nebbiolo, Barbera, Pinot noir, etc.) collected at different technological and phenolic maturity points, will be held with “automatized 4.0 tanks” equipped with sensors for measuring: redox potential, dissolved oxygen, relative density, temperature, and color in order to collect a sufficient amount of data preparatory to the creation of operating models in the most widely winemaking situations in which the automatized 4.0 tanks “will be able to independently respond” with the right corrective actions (opening/closing aeration valve, execution/block pumping overs , etc.) if the key parameters exceed the limits of the recommended ranges set in the selected recipe.

Crop load management of newly planted Pinot gris grown in warm climate of California

San Joaquin Valley accounts for 68% of Pinot gris acreage and produces 83% of Pinot gris wine in California. Strong demand for Pinot gris has prompted growers to restrict the nonbearing period

Regenerative agricultural approaches to improve ecosystem services in Mediterranean vineyards

REVINE is a 3 year European projected funded by PRIMA programme which proposes the adoption of regenerative agriculture practices with an innovative and original perspective, in order to improve the resilience of vineyards to climate change in the Mediterranean area. The potential for innovation lies in developing and combining new approaches that make agriculture more environmentally sustainable and enable a circular economy capable of improving farmers’ incomes. Primarily REVINE aims to improve soil health and biodiversity by promoting the multiplication of soil saprophytic microorganisms and the presence of useful microorganisms linked to the life cycle of the plant, such as rhizobacteria (PGPR) and fungi (PGPF) that promote plant growth which, in addition to increasing plant performance, increase tolerance to biotic and abiotic stresses.

The influence of initial phenolic content on the outcome of pinot noir wine microoxygenation

Over the years, microoxygenation (MOX) has become a popular vinification technique to improve wine sensory qualities. However, among the impacting factors reported

Fast, and full microbiological wine analysis using triple cellular staining.

We propose here a brand new large routine microbiological analysis method intended for oenology, in flow cytometry, using high performance equipment and triple selective cell staining, activated by fluorescence. The results and practical applications of the method are presented: Brettanomyces (Dekkera) Monitoring, fermentations monitoring, bottling and enological practices monitoring.The method allow a complete new microbiological tool for wine industry.The method has been accredited ISO 17025 in our laboratories.