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Influence of the electrochemical potential in oenology
Federico Casassa, California Polytechnic State University; Marcia Torres, Matanza Creek Winery
EnoforumWeb videos: The measurement of RedOx potential in winemaking has an influence on a large number of chemical reactions and therefore has a great impact on the final quality of the wine.
Published on: 07/07/2020
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RHEOLOGIC MEASUREMENTS OF WINE TEXTURE AND VISCOSITY. CORRELATIONS WITH SENSORIAL ANALYSES.
René SIRET, Emmanuel MADIETA, Ronan SYMONAUX, Frédérique JOURJON
This study involved the testing of rheologic methods used to measure wine texture and the comparison of these parameters with those of the sensorial evaluation descriptors of thickness, glycerol, s...
Published on: 24/11/2008
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AROMA PROPERTIES OF YOUNG SPANISH MONOVARIETAL WHITE WINES: A STUDY USING SORTING TASK, LIST OF TERMS AND FREQUENCY OF CITATION
E. CAMPO, B.V. DO, V. FERREIRA and D. VALENTIN AGJWR Vol 14, Number 1, 2008
Little is known about the distinguishing role of variety on the sensory space of commercial white monovarietal Spanish wines. The major aims of the present research were to define the sensory space...
Published on: 27/10/2008
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Rapid Isolation of Red Wine Polymeric Polyphenols by Solid-Phase Extraction
David W. Jeffery, Meagan D. Mercurio, Markus J. Herderich, Yoji Hayasaka, and Paul A. Smith, J. Agric. Food Chem., 56 (8), 2571–2580, 2008.
A rapid technique for the isolation of polymeric polyphenols from red wine has been developed and validated. A copolymer reversed-phase SPE cartridge was utilized in conjunction with predominantly ...
Published on: 24/09/2008
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Analytical Innovations in the Detection of Phenolics in Wines
Pietro Russo, Álvaro Andreu-Navarro, Mar¨ªa-Paz Aguilar-Caballos, Juan-Manuel Fern¨¢ndez-Romero, and Agustina G¨®mez-Hens, J. Agric. Food Chem., 56 (
A liquid chromatographic method with online photometric and luminescent detection for the determination of 18 phenolic compounds in wines is reported. Photometric detection is performed at four wav...
Published on: 24/09/2008
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The Chemical Characterization of the Aroma of Dessert and Sparkling White Wines (Pedro Ximénez, Fino, Sauternes, and Cava) by Gas Chromatography−Olfactometry and Chemical Quantitative Analysis
Eva Campo, Juan Cacho, and Vicente Ferreira, J. Agric. Food Chem., 56 (7), 2477–2484, 2008.
Wines from Pedro Ximénez (PX), Fino, botrytized Sauternes, and Cava were screened by gas chromatography−olfactometry (GC−O), and the most relevant aroma compounds were further quantifie...
Published on: 26/08/2008
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Changes in the Sotolon Content of Dry White Wines during Barrel and Bottle Aging
Valérie Lavigne, Alexandre Pons, Philippe Darriet, and Denis Dubourdieu, J. Agric. Food Chem., 56 (8), 2688–2693, 2008.
GC-MS in electron ionization mode (EI) was used as a simple, sensitive method for assaying sotolon [4,5-dimethyl-3-hydroxy-2(5)H-furanone] in various dry white wines. The impact of barrel-aging con...
Published on: 26/08/2008
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Determination of Rotundone, the Pepper Aroma Impact Compound, in Grapes and Wine
Tracey E. Siebert, Claudia Wood, Gordon M. Elsey, and Alan P. Pollnitz, J. Agric. Food Chem., 56 (10), 3745–3748, 2008.
Shiraz, also known as Syrah or Hermitage, is one of Australia’s most popular red wine varieties both domestically and internationally. Black pepper aroma and flavor are important to some Australian...
Published on: 26/08/2008
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A comparison of analytical methods for measuring the color components of red wines
Andrea Versari, , Roger B. Boulton and Giuseppina P. Parpinello, Food Chemistry, Volume 106, Issue 1, January 2008, 397-402
The monomeric and polymeric pigments of 20 young red wines were analysed using most recent of the approaches available for phenolics measurements in wine, including: (i) HPLC with silica-based rever
Published on: 18/07/2008
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Resistance to Oxidation of White Wines Assessed by Voltammetric Means
Astride Rodrigues, A. C. Silva Ferreira, Paula Guedes de Pinho, Fátima Bento, and Dulce Geraldo, J. Agric. Food Chem., 55 (26), 10557–10562
This work concerns the development of a methodology suited to measure the resistance to oxidation of white wines by cyclic voltammetry. The voltammetric responses of several white wines of differen...
Published on: 24/06/2008
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Preliminary study on the application of visible–near infrared spectroscopy and chemometrics to classify Riesling wines from different countries
L. Liu, D. Cozzolino, W.U. Cynkar, R.G. Dambergs, L. Janik, B.K. O’Neill, C.B. Colby, and M. Gishen, Food Chemistry,Volume 106, Issue 2, January 2008,
Visible (VIS) and near infrared (NIR) spectroscopy combined with chemometrics was used in an attempt to classify commercial Riesling wines from different countries (Australia, New Zealand, France and
Published on: 24/06/2008
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Survey: Ochratoxin A in European special wines
Ana Valero, Sonia Marín, Antonio J. Ramos and Vicente Sanchis, Food Chemistry
The occurrence of Ochratoxin A (OTA) was examined in 121 special wines made using different winemaking techniques and from many European origins. The wine groups with the highest OTA content and oc...
Published on: 24/05/2008
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Parameters Affecting Ethyl Ester Production by Saccharomyces cerevisiae during Fermentation
S. M. G. Saerens, F. Delvaux, K. J. Verstrepen, P. Van Dijck, J. M. Thevelein, and F. R. Delvaux, Applied and Environmental Microbiology, January 2008
Volatile esters are responsible for the fruity character of fermented beverages and thus constitute a vital group of aromatic compounds in beer and wine. Many fermentation parameters are known to a...
Published on: 24/05/2008
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Aging Effects and Grape Variety Dependence on the Content of Sulfur Volatiles in Wine
Bruno Fedrizzi, Franco Magno, Denis Badocco, Giorgio Nicolini, and Giuseppe Versini, J. Agric. Food Chem., 55 (26), 10880–10887
Thirteen sulfur compounds usually considered as possible off-flavoring volatiles, were quantified by a concurrent headspace−solid phase microextraction method coupled with gas chromatography–ma
Published on: 24/04/2008
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Partial Shading of Cabernet Sauvignon and Shiraz Vines Altered Wine Color and Mouthfeel Attributes, but Increased Exposure Had Little Impact
Venetia L. Joscelyne, Mark O. Downey, Marica Mazza, and Susan E. P. Bastian, J. Agric. Food Chem., 55 (26), 10888–10896
Few studies have investigated the impact of vine shading on the sensory attributes of the resultant wine. This study examines the effects of canopy exposure levels on phenolic composition plus aroma,
Published on: 24/04/2008
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PANORAMA AND SYNTHESIS OF THE 8TH INTERNATIONAL OENOLOGICAL SYMPOSIUM OF BORDEAUX- JUNE 2007
Sophie PALLAS, Oenologist
Close to 200 communications, of which 42 were selected for the event extending over 2 days and a half, further completed by some twenty workshops: due to this extent, it is not possible to be exhau...
Published on: 24/04/2008
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