VitiSynth Full Entry

Reference: Selective harvest for the Petit Verdot vinification from Campanha Gaucha in Rio Grande do Sul (RS), Brazil
Key Statements


The State of Rio Grande do Sul (RS) is the main producer state of fine grapes (Vitis vinifera L.) for the preparation of fine wine. Located in the southern half of the RS, the Campanha Gaucho is a region bounded by temperate grasslands called the “Pampa” Biome. Its climatic characteristics has enabled it to become one of the most promising regions for producing fine grapes for winemaking. In this scenario, after a selection of clusters with different levels of maturity, we sought to identify the winemaking characteristics of 'Petit Verdot', from the elaboration of a varietal wine in the traditional method, as well as their sensory characteristics (smell/taste) as a final analysis. Manual sorting of the grape bunches was defined into three divisions with three repetitions each (12 kg of grapes replication-1, totaling 108 kg), these were: sorting T1: mature grapes; sorting T2: incomplete mature grapes and; sorting T3: without sorting the bunches. Grape juice was analyzed by Fourier transform infrared spectrometry (FTIR); where we evaluated the total soluble solids, pH, total acidity, reducing sugar, malic and tartaric acid. In wine, alcohol, pH, total acidity, volatile acidity, reducing sugars, glycerol, malic and lactic acid were evaluated. Sensory analysis of wine for evaluation of its organoleptic characteristics was also carried out. The data was submitted for analysis of variance and mean comparison Tukey test at 5% significance. There were no significant variations of the compounds analyzed in the grape juice and wine cultivar 'Petit Verdot'. Of the sensory analysis results, only the acidity resulted differently between sorting T2 and sorting T1 treatments that presented higher acidity. In this context, the selection of clusters of different levels of wine for aging was not necessary for improving the quality of the wines produced.

(highlighting by VitiSynth)

Link to paper-

Partially indexed reference.

View Interactions

VitiSynth Review
Go Back


Guaranteed Excellence NDtech-   an individualized quality control screening technology for natural cork stoppers that delivers the world’s first natural cork with a non-detectable TCA guarantee*.   *releasable TCA content below the 0.5 ng/L quantification limit; analysis performed in accordance to ISO 20752.

Publication Details

Published: 2017
Publication: 10th International Symposium on Grapevine Physiology and Biotechnology
Issue: 2017 13-18 June 2017
Author: Saavedra del Aguila J 2017


Related Video

None for this Entry

Related Audio

None for this Entry

Discuss this Entry

No related discussions available.

Join Discussion

Latest Discussions
Special Report

Date: 29th October 2015
Reference:Journal:Weed Technology:2015:Online October 2015:Devkota P 2015:Influence of Spray Solution Temperature and Holding Duration on Weed Control with Premixed Glyphosate and Dicamba Formulation

Pesticides in general are chemical products, therefore the quality of ...Read more

Date: 3rd February 2015
Polls:0009:Data standards:03 Malvidin-3-glucoside or Malvidin-3-O-glucoside or Malvidin 3-O-β-D-glucoside?

Malvidin-3-glucoside or Malvidin-3-O-glucoside or Malvidin 3-O-β-D-gl...Read more

Date: 26th January 2015
Admin Synth:Guides:Data standards:Wine industry research papers (draft standard)

I think we should be developing a standard for wine industry research ...Read more

Wine Industry Data Standards.. Read more