Terroir 2008 banner
IVES 9 IVES Conference Series 9 Evaluation of grape and wine quality according to harvest date, in a tropical region in Northeast Brazil

Evaluation of grape and wine quality according to harvest date, in a tropical region in Northeast Brazil

Abstract

The Northeast region of Brazil is characterized by a semi-arid climate, has produced tropical wines since twenty years ago. The region is located at 09º 09’ South, 40º 22’ West, 365.5 m. In the region it’s possible to harvest grapes for winemaking process two or three times by year, depending of the cultivar. The aim of this study was to evaluate differences between grape and wine characteristics, according to the production seasons. It was evaluated three cultivars recently introduced in the region (‘Alfrocheiro’, ‘Deckrot’ and ‘Tempranillo’), produced in December 2006 and June 2007. The vines were planted in December 2004 in a grid spacing of 3 x 1.5 m, trellis system adopted was pergola, grafted on rootstock IAC-313 (‘Golia’ x Vitis cinerea), and have been irrigated by drippers. Significant differences were found for the grape and wine compositions according to the harvest date. The grapes from the first semester presented low pH and total solid soluble (ºBrix) and high acidity than grapes harvested in the second semester. The wines produced in the first semester had low alcohol and high acidity levels than wines from second semester. Normally, the commercial wines are made by mix between wines produced from different seasons in the year. ‘Tempranillo’ wines presented good quality and could be used by the wineries. It’s necessary to continue studying and determining the influences of the seasons on grape and wine quality, and the responses of new cultivars introduced in the region to allow the production of high quality and typical wines.

Download the PDF

DOI:

Publication date: December 8, 2021

Issue: Terroir 2008

Type : Article

Authors

Giuliano ELIAS PEREIRA (1); Juliana de OLIVEIRA SANTOS (2), Celito CRIVELLARO GUERRA (3), Luis ANTÔNIO ALVES (4)

(1) Embrapa Raisin et Vin/Semi- Aride, Centre National de Recherche de la Vigne et du Vin; détaché au Centre de Recherche du Tropique Semi-Aride. BR 428, Km 152 ; Code Postal 56302-970. Petrolina-PE, Brésil. Petrolina-PE-Brasil
(2) Boursier CNPq/ITEP/Embrapa
(3) Embrapa Raisin et Vin, Bento Gonçalves-RS-Brasil
(4) Embrapa Semi-Aride, Petrolina-PE-Brasil

Contact the author

Keywords

Vitis vinifera L., tropical wines, enology, enological potentiality

Tags

IVES Conference Series | Terroir 2008

Citation

Related articles…

Data deluge: Opportunities, challenges, and lessons of big data in a multidisciplinary project

Grapevine powdery mildew resistance is a key target for grape breeders and grape growers worldwide. The driver of the USDA-NIFA-SCRI VitisGen3 project is completing the pipeline from germplasm identification to QTL to candidate gene characterization to new cultivars to vineyards to consumers. This is a common thread across such projects internationally. We will discuss how our objectives and approaches leverage big data to advance this initiative, starting with genomics and computer vision phenotyping for gene discovery and genetic improvement. To manage and maintain resistances for long-term sustainability, growers will be trained through our nation-wide extension and outreach plan.

Read More

Genomic perspective of Lachancea thermotolerans in wine bioacidification

We have sequenced two commercial strains of Lachancea thermotolerans (Lt) from the company Lallemand: Laktia™ y Blizz™.

Read More

Evaluation des impacts environnementaux des itinéraires techniques viticoles de production de vins AOP en Val de Loire: démarche d’adaptation de la méthode de l’analyse du cycle de vie (ACV)

La société et l’état imposent plus que jamais à la viticulture française de prendre en compte ses impacts environnementaux tout en produisant des vins de qualité. Après avoir présenté ces impacts, les auteurs exposent la méthode de l’Analyse du Cycle de Vie. Ils proposent une démarche pour sa mise au point pour évaluer les impacts environnementaux en viticulture AOP en Val de Loire dans le cadre de l’évaluation de la compatibilité des objectifs qualitatifs et environnementaux de la production de raisins de cuve.

Read More

Prefermentative CO2 saturation of grape must to obtaining white wines with low SO2 content

The objective this work has been study the possibility of partially or completely replacing sulphur in the winemaking of white wines through the use of the prefermentative saturation of musts with CO2.

Read More

Exploring the dynamic between yeast mannoproteins structure and wine stability

Mannoproteins are macromolecules found on the surface of yeast cells, composed of hyperbranched polysaccharide negatively charged chains by mannosyl-phosphate groups, fixed to a protein core. during the alcoholic fermentation and aging on lees, these mannoproteins are released from the yeast cell wall and become the main yeast-sourced polysaccharide in wine. due to their techno-functional properties, commercial preparations of mannoproteins can be used as additives to better assure tartaric and protein stability.

Read More