italianoenglishfrançaisdeutschespañolportuguês
Language
Search

Effect of different winemaking techniques and grape variety on chemo-sensory parameters of white wines

Marta BUENO-HERRERA, Rubén DEL BARRIO-GALÁN, Héctor DEL VALLE-HERRERO, Pedro LÓPEZ DE LA CUESTA, Silvia PÉREZ-MAGARIÑO
Instituto Tecnológico Agrario de Castilla y León, Spain

Email contact: bueherma[@]itacyl.es

 

AIM: Study the chemical and sensory parameters of fifty commercial white wines elaborated with different techniques (fermented in oak barrel and aged on lees (FB+AL); aged on lees (AL); and without aging (WA)) and different grape varieties (Verdejo, Sauvignon Blanc and Godello).

METHODS: Classical enological parameters (1), phenolic families (2), polysaccharides (3), volatile groups (4) and sensory attributes were analysed.

RESULTS: In general, the FB+AL wines had the highest content of the different phenolic families studied and the AL wines the lowest. In the FB+AL wines also highlighted the highest total polysaccharide content and acidity and WA ones the lowest. Respect to the volatile groups, the FB+AL wines showed the highest concentration of higher alcohols and those volatiles which come from the oak wood, such as whiskey lactones, vanillic and furanic derivatives, and positive volatile phenols. On the contrary, the AL and WA wines were characterized by their higher content of ethyl esters and alcohol acetates than FB+AL wines. Sensory differences were found between the wines elaborated with different techniques, The FB+AL wines showed the highest values of the olfactory intensity, followed by the WA and AL ones. This result was mainly due to the difference found in the white and tropical fruits and spice and toasted aromas. The FB+AL wines were better valuated in body and persistence attributes than the WA ones.

Godello wines presented the highest ethanol content and Verdejo wines the lowest. Sauvignon Blanc wines had the highest tartaric esters and flavonols, ethyl esters, ethyl esters, alcohol acetates and C6 alcohols, and the lowest total polysaccharides and aldehydes. Godello wines also had higher content of higher alcohols than Verdejo and Sauvignon Blanc wines, and higher content of terpenes than Verdejo wines.

Sauvignon Blanc wines were characterized by having the highest vegetal aromas, Verdejo wines by tropical fruit aromas and Godello ones by white fruit aromas.

CONCLUSIONS: Differences in chemo-sensory parameters were found in the wines elaborated with different techniques. The FB+AL technique had more influence on these parameters due to the release of several compounds from oak and lees. The grape variety influence was different depending on the parameter analysed, highlighting the differences found in the aromatic attributes of each varietal wine.

ACKNOWLEDGEMENTS: This study was supported by the project 2017/721 from “Rural Development Program (PDR) of Castilla y León 2014-2020” (financed with FEADER funds).

 

References:

1. International Organisation of Vine and Wine, Compendium of International Methods of Wine and Must Analysis, Paris (2016).

2. Pérez-Magariño S., Ortega-Heras M., Cano-Mozo E., González-Sanjosé M. (2009). The influence of oak wood chips, micro-oxygenation treatment, and grape variety on colour, and anthocyanin and phenolic composition of red wines. J Food Comp. Anal. 22(3): 204-211.

3. Guadalupe Z., Martínez-Pinilla O., Garrido Á., Carrillo J., Ayestarán B. (2012). Quantitative determination of wine polysaccharides by gas chromatography-mass spectrometry (GC-MS) and size exclusion chromatography (SEC). Food Chem. 131(1): 367-374.

4. Ubeda, C.; Kania-Zelada, I.; del Barrio-Galán, R.; Medel-Marabolí, M.; Gil, M.; Peña-Neira, A. (2019). Study of the changes in volatile compounds, aroma and sensory attributes during the production process of sparkling wine by traditional method. Food Res. Int. 119: 554-563.

Published on 06/11/2018
Pictures
Related sheets
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +
ExecTime : 1,786133