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Diaz-Losada E.,INGACAL Estacion de Viticultura y Enologia de Galicia | CorteS-Dieguez S.,INGACAL Estacion de Viticultura y Enologia de Galicia | Rodriguez-Torres I.,Instituto Canario Of Investigaciones Agrarias Icia | Miras-Avalos J.M.,INGACAL Estacion de Viticultura y Enologia de Galicia | And 2 more authors.
Journal International des Sciences de la Vigne et du Vin | Year: 2013

Aims : This work contributes to the knowledge of the genetic diversity of Vitis vinifera L. with the characterization of the non-referenced cultivar 'Albilla' by ampelographic description and molecular markers. This will be useful for the preservation, identification and propagation of this cultivar in the future. Methods and results: Six microsatellites (SSRs), 55 OIV (International Organisation of Vine and Wine) morphological descriptors and 45 phylometric traits were evaluated in two accessions of 'Albilla' preserved in the Germplasm Bank of EVEGA (Estación de Viticultura e Enoloxía de Galicia), Xunta de Galicia. Additionally, we set out to determine whether this cultivar was distinct from the yet uncharacterized 'Albillo' cultivars found in the Canary Islands. These methods allowed us to describe the cultivar known as 'Albilla' and to compare it with other homonym cultivars. Conclusions : The 'Albilla' cultivar is different from other genotypes denominated 'Albillo' and any other genotype described until now. This may indicate that it could be an autochthonous cultivar from Galicia. Significance and impact of the study: The characterization of cultivars is still necessary in order to identify any homonyms or synonyms, develop measures for their conservation (germplasm collection) and evaluate their potential for producing quality wines. ©Vigne et Vin Publications Internationales (Bordeaux, France).

Lopez-Vazquez C.,INGACAL Estacion de Viticultura y Enologia de Galicia | Herminia Bollain M.,University of Santiago de Compostela | Berstsch K.,Destilacao Vinicola Torrejana | Orriols I.,INGACAL Estacion de Viticultura y Enologia de Galicia
Food Control | Year: 2010

A fast determination of principal volatile compounds (acetaldehyde, ethyl acetate, acetal, methanol, butan-2-ol, butan-1-ol and higher alcohols) by direct inject of the spirit drink has been developed. At a total analysis time of 23min were quantified others 23 additional volatile compounds like ethyl esters, acetates higher alcohols, 1-hexanol, carbonyl compounds and others, responsible for the quality evaluation of the distillate. These compounds are very important for analysis of fermentation conditions, storage techniques and the quality control of the distillation process. The proposed method has been validated with r2 values from 0.9988 to 0.9999 with limits of detection varied between 0.003mg/L for isobutyraldehyde and 0.076mg/L for diethyl succinate and acceptable reproducibility. The developed method was successfully applied to different samples of grape pomace protected by Specific Denomination " Orujo de Galicia" © 2010 Elsevier Ltd.

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