ODOR ACTIVITY VALUE IN RED WINES AROMA FROM THREE WINE REGIONS IN ROMANIA

Four monovarietal red wines from three wine regions in Romania were analysed (Cabernet Sauvignon, Fetească neagră and Pinot noir from two areas in Satu Mare and Fetească neagră and Merlot from Constanța) in a liquid-liquid extraction with dichloromethane by gas chromatography-mass spectrometry (GC–MS). The odor activity value (OAV) was calculated in the 29 aroma compounds identified: 10 alcohols, 11 esters, 5 fatty acids, 1 lactone and 2 other compounds. Wines were differentiated by specific compounds and 22 of the volatile compounds had an OAV>1 (7 alcohols, 9 esters, 5 fatty acids and 1 lactone), significantly contributing to wine aromas. All chemicals changed in the volatile composition: most alcohols and acids increased during ageing, while all esters increased with ageing time. According to their OAVs, aroma strongly influenced the characteristics of the four monovarietal wines

FRAMING OF WINES FROM THE TRANSYLVANIA AREA IN P.D.O. DEPENDING ON THE PRODUCTION, VARIETY AND CULTIVATION AREA

The cultivation of grapes and the preparation of wine are human practices made since ancient times, in which the climate and soil conditions for the cultivation of grapes are the most favorable. Among the countries with viticulture and vinification in Europe, Romania as a wine country ranks fifth in viticulture, sixth place in grape production and sixth place in wine production. In the present paper, these criteria adapted to some grape varieties for red wines from Northern Transylvania were studied, in order to classify them in the PDO (Protected Designation of Origin) category. For the location of Lechinţa, Liliac wine cellar for Lechinţa PDO, the studied Merlot varieties record a production of 77.50 hl / ha. For the Fetească neagră variety a production of 77.70 hl / ha and for the Pinot Noir variety a wine production of 77.98 hl / ha, being the Vineyard with the best results for 2016 year

THE RELATIONSHIP BETWEEN SOIL TYPE AND DRY EXTRACT CONTENTN IN RED WINES FROM NORTHERN TRANSYLVANIA

The study of dry extract was conducted on Fetească neagră variety, cultivated in five vineyards, in the Northern Region of Transylvania, in a white wines consecrated area, to find favorability for red wines. The research was conducted on protected geographical indications and protected designations of origin in correlation with five soil types on which the black grapevine are cultivated. Were used analitycal results from an official authorized laboratory and samples presented to national evaluating commisions for origin and authenticity certification for the commercialize purpose with protected geographical indication or protected designation of origin. The soil type and the location are not limitative factors for accumulating of high values of dry extract in the grapes destinated for producing red wines. The results were almost similar in the red wines produced in clasical white wines area, with those from a consecrated area for quality red wines.