Authors:H. Kalkan Yildirim, U. Yücel, Y. Elmaci, G. Ova and T. Altug
Organic wines produced by using organically cultivated grapes were evaluated using multivariate analysis and profiled by quantitative descriptive analysis. Trained judges rated the intensity of aroma and flavour descriptors. The statistical evaluation of the data demonstrated the close relation between Merlot and Cabernet sauvignon wines, considering their aroma descriptors and between Merlot and Carignan taking into account the taste descriptors. Significant differences among white wines were determined for sweet and bitter attributes and among red wines for sour, sweet, bitter, and astringency descriptors. The results of wine aroma characteristics demonstrated the following major descriptors for each wine type: metallic (Columbard); grape juice, wet wood, vine leaf (Semillon); burned wood (Grenache); dust, sour cherry, tobacco, yeast (Cabernet sauvignon); cork, unripe fruit, cinnamon (Carignan); grape molasses, dry plum (Merlot). Flavor profile of organic wines revealed specific descriptors for each wine type, namely raisin (Columbard); alcohol, rose, vine leaf, sulphur (Semillon); clove, salty (Grenache); flower, sour cherry, melon, cornelian cherry (Cabernet sauvignon), dry plum (Carignan, Merlot).
Authors:Claudia Cimpoiu, Anamaria Hosu, Rodica Briciu and Vasile Miclaus
The color pigments from different sorts of red wine (Cabernet Sauvignon, Merlot, and Burgundy) produced in different years, purchased from the Recas and Minis Romanian wineries, were separated using a new reversed-phase thin-layer chromatographic (RP-TLC) method. Chromatographic separation of the pigments was performed on silica gel RP-18F
with acetonitrile-water-formic acid 40:58:2 (
) as mobile phase. Most of the natural pigments are phenolic compounds with antioxidant activity that can be evaluated by use of a stable free radical, for example DPPH (2,2-diphenyl-1-picrylhydrazyl). The proposed RP-TLC method can be used in wine monitoring to identify the origin of wine and to detect adulteration.
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Authors:V. Piližota, M. Kopjar, N. Županić and N. Balija
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Brunborg, I. M., Fossum, C., Lium, B., Blomqvist, G., Merlot, E., Jorgensen, A., Eliasson-Selling, L., Rimstad, E., Jonassen, C. M. and Wallgren, P. (2010): Dynamics of serum antibodies to and load of porcine circovirus type 2 (PCV2) in pigs in three