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EFFECTS OF SELECTED VITICULTURAL AND ENOLOGICAL FACTORS ON LEVELS OF 2-METHOXY–3-ISOBUTYLPYRAZINE IN WINES

Y. KOTSERIDIS*,**,1, A. ANOCIBAR BELOQUI*, C.L BAYONOVE**, R.L BAUMES** and A. BERTRAND*

*Laboratoire de Chimie Analytique, Faculté d'Œnologie,
Université Victor Segalen Bordeaux 2, 351 cours de la Libération, 33405 Talence (France)
**Laboratoire des Arômes et Substances Naturelles, INRA-IPV, 2 place Viala,
34060 Montpellier cedex 01 (France)

Abstract : This paper examines the influence of viticultural and winemaking parameters in the 2-methoxy-3-isobutylpyrazine level in wines. Variety, state of maturity of grapes and maceration duration controlled decisively the amount of this compound.

Key words : 2-methoxy-3-isobutylpyrazine, GC-MS, varieties, maturity, maceration