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Article

Methoxypyrazines in Grapes and Wines of Vitis vinifera cv. Carmenere

Andrea Belancic, Eduardo Agosin
Am J Enol Vitic.  2007 58: 462-469 ; DOI: 10.5344/ajev.2007.58.4.462
Andrea Belancic
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
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Eduardo Agosin
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
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  • For correspondence: agosin@ing.puc.cl
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Abstract

Vitis vinifera cv. Carmenere, a member of the Cabernet family, was recently rediscovered in Chile where it had been misidentified as Merlot. The Carmenere variety produces complex wines, marked with herbaceous and “green” aromas. Results indicate that methoxypyrazines are present in high concentrations in this variety, probably responsible for the strong vegetative character found in Carmenere wines. Wines from Carmenere grapes had high 3-isobutyl-2-methoxypyrazine (IBMP) concentrations (5.0 to 44.4 ng/L), much higher than most Cabernet Sauvignon wines. The genotype dramatically affected the methoxypyrazine content of Carmenere wines, with some clones containing three-fold more than others. Climatic conditions, rather than maturity or terroir, had a critical effect upon IBMP concentration in grapes. 3-Isopropyl-2-methoxypyrazine evolved differently during grape maturation and was less influenced by harvesting year.

  • Carmenere
  • methoxypyrazine
  • genotype
  • harvest date
  • grape
  • wine
  • Received August 2006.
  • Revision received May 2007.
  • Copyright © 2007 by the American Society for Enology and Viticulture
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You have accessRestricted access
Methoxypyrazines in Grapes and Wines of Vitis vinifera cv. Carmenere
Andrea Belancic, Eduardo Agosin
Am J Enol Vitic.  2007  58: 462-469  ; DOI: 10.5344/ajev.2007.58.4.462
Andrea Belancic
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
  • Find this author on Google Scholar
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Eduardo Agosin
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
  • Find this author on Google Scholar
  • Find this author on PubMed
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  • For correspondence: agosin@ing.puc.cl

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Methoxypyrazines in Grapes and Wines of Vitis vinifera cv. Carmenere
Andrea Belancic, Eduardo Agosin
Am J Enol Vitic.  2007  58: 462-469  ; DOI: 10.5344/ajev.2007.58.4.462
Andrea Belancic
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Eduardo Agosin
1Centro de Aromas, DICTUC, and 2School of Engineering, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: agosin@ing.puc.cl
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