Effects of soil and vineyard characteristics on volatile, phenolic composition and sensory profile of cabernet sauvignon wines of Campanha Gaúcha.

The influence of vineyard on wines was evaluated for the first time using a broader analytical approach: sensory analyses and several analytical techniques (gas chromatography-mass ectrometry (GC-MS), GC flame ionization detection (FID), GC-olfactometry-Osme technique (GC-O-Osme), GC × GC-MS), taking into account odoriferous compounds of Cabernet Sauvignon wines. Sensory attributes were correlated to the concentration of volatiles and also to favorable climate/solar exposition, less clayey/lower organic matter soil, and lower vegetative growth of one out of five vineyards, C1. Among 30 coelutions in GC-MS, 12 involved some of the odoriferous volatiles and GC × GC-MS was required to elucidate their identities. Higher concentrations of ethyl propanoate and diacetyl (related with red fruits/aromatic intensity) and of acetoin (aroma of dry fruits, but coeluted with octanal in first dimension (1D), which presents green odor) were found in C1 wine. It was also correlated with positive appearance attributes, gustatory persistence, body, smell and taste harmony, as well as with higher concentrations of phenolic acids, anthocyanins, flavonols, stilbenes, and flavanols.

Bibliographic Details

Main Authors:	NICOLLI, K. P., BIASOTO, A. C. T., GUERRA, C. C., SANTOS, H. P. dos, CORREA, L. C., WELKE, J. E., ZINI, C. A.
Other Authors:	Karine P. Nicolli, Instituto de Química, Universidade Federal do Rio Grande do Sul; ALINE TELLES BIASOTO MARQUES, CPATSA; CELITO CRIVELLARO GUERRA, CNPUV; HENRIQUE PESSOA DOS SANTOS, CNPUV; LUIZ CLAUDIO CORREA, CPATSA; Juliane E. Welke, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul; Cláudia A. Zini, Instituto de Química, Universidade Federal do Rio Grande do Sul.
Format:	Artigo de periódico biblioteca
Language:	Ingles English
Published:	2020-05-11
Subjects:	Perfil sensorial de vinhos, Cabernet Sauvignon, Compostos voláteis, Olfatometria, Líquido cromatografia, Uva, Vinho, Composto Fenólico, Wine grapes, Grapes,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1122207 http://dx.doi.org/10.21577/0103-5053.20190276
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