Publicação
Characterization and differentiation of seven vinhos verdes grape varieties on the basis of monoterpenic and C13-norisoprenoid compounds
| Resumo: | The aromatic profiles of the 7 recommended cultivars for Vinho Verde wine production have been established with respect to monoterpenic and C13-norisoprenoids compounds, present either in free or in glycosidically bound fractions. Eighteen monoterpenic compounds have been identified and quantified in the free form and 22 in the glycosidically bound form. Fifteen C13-norisoprenoids compounds have been identified and quantified in the glycosidically bound form. Loureiro variety can be easily differentiating from the 6 other varieties by important levels of linalool in the free fraction, above the odour perception threshold; in contrast, Alvarinho, Avesso, Arinto, Azal and Trajadura, geraniol prevails. Batoca variety showed a very poor monoterpenic profile in the free form. In the glycosidically bound form Alvarinho is the richest in total concentration of monoterpenic compounds, followed by Loureiro. |
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| Autores principais: | Genisheva, Zlatina Asenova |
| Outros Autores: | Vilanova, Mar; Oliveira, J. M. |
| Ano: | 2008 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | The aromatic profiles of the 7 recommended cultivars for Vinho Verde wine production have been established with respect to monoterpenic and C13-norisoprenoids compounds, present either in free or in glycosidically bound fractions. Eighteen monoterpenic compounds have been identified and quantified in the free form and 22 in the glycosidically bound form. Fifteen C13-norisoprenoids compounds have been identified and quantified in the glycosidically bound form. Loureiro variety can be easily differentiating from the 6 other varieties by important levels of linalool in the free fraction, above the odour perception threshold; in contrast, Alvarinho, Avesso, Arinto, Azal and Trajadura, geraniol prevails. Batoca variety showed a very poor monoterpenic profile in the free form. In the glycosidically bound form Alvarinho is the richest in total concentration of monoterpenic compounds, followed by Loureiro. |
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