Discrimination of varietal wines according to their volatiles.
A method is being proposed in order to discriminate bottled wines of different varieties when no other information is known. The advantages of the method consist in the fact that anyone who wants to certify the variety, which is written on the label or the area of origin, can use such a technique to achieve the conformity. Additionally, the method can be easily applied by laboratories equipped with a GC. The differentiation has been achieved by using only seven of the total extracted volatiles, mainly higher alcohols and higher alcohol esters, namely 3-methyl-1-butanol, 2,3-butanediol, ethyl lactate, 3-methyl-1-butyl acetate, 2-phenylethanol, phenyl ethyl acetate and p-hydroxy phenyl ethanol. These key compounds are not relevant to a single variety. The proposed method does not take into account variables such as the year of vintage and fermentation procedures (agitation, temperature).
Department of Oenology & Beverage Technology, Technological Educational Institute (T.E.I.) of Athens, Ag. Spyridonos Str., Egaleo, GR-12210 Athens, Greece.
Vassilis
V
Dourtoglou
Department of Oenology & Beverage Technology, Technological Educational Institute (T.E.I.) of Athens, Ag. Spyridonos Str., Egaleo, GR-12210 Athens, Greece.
Aristotelis
A
Antonopoulos
Department of Oenology & Beverage Technology, Technological Educational Institute (T.E.I.) of Athens, Ag. Spyridonos Str., Egaleo, GR-12210 Athens, Greece.
Thalia
T
Dourtoglou
Department of Food Technology, Technological Educational Institute (T.E.I.) of Thessaly, Terma N. Temponera Str., GR-43100 Karditsa, Greece. Electronic address: slalas@teilar.gr.
Stavros
S
Lalas
D000438:Alcohols / Q000032:analysis*; D002849:Chromatography, Gas; D005285:Fermentation; D006801:Humans; D014920:Wine / Q000032:analysis*
D000438:Alcohols
2,3-Butanediol; 2-Phenylethanol; 3-Methyl-1-butanol; 3-Methyl-1-butyl acetate; Agiorgitiko; Chardonnay; Ethyl lactate; Moschofilero; PCA; Phenyl ethyl acetate; Wines discrimination; p-Hydroxy phenyl ethanol