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» MEMBRANE FILTRATION EFFECTS ON AROMATIC AND PHENOLIC QUALITY OF CABERNET SAUVIGNON WINES

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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MEMBRANE FILTRATION EFFECTS ON AROMATIC AND PHENOLIC QUALITY OF CABERNET SAUVIGNON WINES

MEMBRANE FILTRATION EFFECTS ON AROMATIC AND PHENOLIC QUALITY OF CABERNET SAUVIGNON WINES

J.P. Arriagada-Carrazana, C. Sáez-Navarrete E. Bordeu Journal of Food Engineering 2005, 68 (3) 363-368

The effects to membrane filtration (using a pilot system with a 1.2 ìm prefilter and a 0.65 ìm final filter system) on the aromatic profile and phenolic quality of a Cabernet Sauvignon wine was studied. A statistically significant decrease (p < 0.05) was observed in the colour intensity and polyphenolic profile, with the exception of the HCl index which remained stable. In more than a hundred aromatic compounds measured, a significant difference (p < 0.05) was observed in only 12 of them. This difference caused by filtration was corroborated sensorially by a Triangle Test performed by an inexpert panel. The results obtained show that the probable cause of the observed differences is a membrane adsorptive phenomenon. We advise you to read the full article, titled Membrane filtration effects on aromatic and phenolic quality of Cabernet Sauvignon wines

Published on 01/11/2005

Aurélie Lagorce-Tachon et al. J. Agric. Food Chem., 2016, 64 (35), pp 6672–6675

The transfer of oxygen through a corked bottleneck was investigated using a manometric technique. First, the effect of cork compression on oxygen transfer was evaluated without considering the glas...

Published on:22/12/2016

Ascorbic acid and white wine production: a review of beneficial versus detrimental impacts

C. Barril, D.N. Rutledge, G.R. Scollary, A.C. Clark; Australian Journal of Grape and Wine Research, Volume 22, Issue 2, pages 169–181, June 2016

We review the use of ascorbic acid in winemaking and the benefits as well as the detrimental outcomes associated with its use. Initial discussion focuses on the antioxidant activity of ascorbic aci...

Published on:22/12/2016

Deficit Irrigation Alters Grapevine Growth, Physiology, and Fruit Microclimate

M. Keller, P. Romero, H. Gohil, R. P. Smithyman, W. R. Riley, L. F. Casassa,J. F. Harbertson; Am J Enol Vitic. October 2016 67: 426-435;

A deficit irrigation trial was conducted with field-grown Cabernet Sauvignon grapevines in the Columbia Valley of southeastern Washington. Four irrigation regimes were applied in four replicated bl...

Published on:22/12/2016

Detection of Flavescence dorée Grapevine Disease Using Unmanned Aerial Vehicle (UAV) Multispectral Imagery

J. Albetis , Sylvie Duthoit, F. Guttler, A. Jacquin, M. Goulard, H. Poilvé, J.-B. Féret and G. Dedieu; Remote Sens. 2017, 9(4), 308.

Flavescence dorée is a grapevine disease affecting European vineyards which has severe economic consequences and containing its spread is therefore considered as a major challenge for viticulture. ...

Published on:25/04/2017

Development of a grower-conducted inoculum detection assay for management of grape powdery mildew.

L. D. Thiessen, J. A. Keune, T. M. Neill, W. W. Turechek, G. G. Grove, W. F. Mahaffee.; Plant Pathology (2016) 65, 238–249

Management of grape powdery mildew (Erysiphe necator) and other polycyclic diseases often relies on calendar-based pesticide application schedules that assume the presence of inoculum. An inexpensi...

Published on:23/08/2016

Grapevine Red Blotch Virus May Reduce Carbon Translocation Leading to Impaired Grape Berry Ripening

J. Martínez-Lüscher, C.M. Plank, L. Brillante, M.L. Cooper, R.J. Smith, M. Al-Rwahnih, Runze Yu, A. Oberholster, R. Girardello, and S. Kaan Kurtural

Grapevine red blotch disease, caused by grapevine red blotch virus (GRBV; genus Grablovirus family Geminiviridae), is an emerging concern among grape growers. Parallel studies in New York and Calif...

Published on:04/07/2019

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