Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/2668
Título: Volatile sulphur compounds composition of monovarietal white wines
Autor: Moreira, Nathalie
Pinho, Paula Guedes de
Santos, Cristina
Vasconcelos, Isabel
Palavras-chave: GC/FPD
Heavy sulphur compounds
Cultivars
Alvarinho;
Loureiro
Trajadura
Pedernã
Azal Branco
Avesso
Vinhos Verdes wines
Data: 2010
Editora: Elsevier
Citação: "Food Chemistry" . ISSN 0308-8146. 123: 4 (2010) 1198–1203
Resumo: The sulphur compounds composition of wines produced experimentally from six white cultivars (Alvarinho, Loureiro, Trajadura, Pedernã, Azal Branco and Avesso) was evaluated during two consecutive vintages. Results show that wines could be differentiated according to their sulphur compounds content. In general, Loureiro, Trajadura and Pedernã cultivars led to wines with low concentrations of sulphur compounds; however, Loureiro wines were characterised by significant amounts of dimethyl sulphone, whereas Trajadura wines possessed a high content of 3-(methylthio)propyl acetate and 4-(methylthio)-1-butanol. Alvarinho and Avesso wines showed high levels of S-methyl thioacetate, 3-mercapto-1-propanol, 3-(ethylthio)-1-propanol and 3-methylthiopropionic acid. Significant amounts of 2-methyltetrahydrothiophen-3-one, cis- and trans-2-methyltetrahydrothiophen-3-ol were also found in Avesso wines. Azal Branco wines were low in 3-(methylthio)propyl acetate and 2-(methylthio)ethanol, and high contents in S-methyl thioacetate, 3-mercapto-1-propanol and 2-mercaptoethanol. A linear discriminant analysis of sulphur compounds levels showed a differentiation of wines according to their varietal origin.
URI: http://hdl.handle.net/10400.14/2668
Versão do Editor: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T6R-5051PS2-B&_user=2460358&_coverDate=12%2F15%2F2010&_rdoc=36&_fmt=high&_orig=browse&_origin=browse&_zone=rslt_list_item&_srch=doc-info%28%23toc%235037%232010%23998769995%232226759%23FLA%23display%23Volume%29&_cdi=5037&_sort=d&_docanchor=&_ct=59&_acct=C000057417&_version=1&_urlVersion=0&_userid=2460358&md5=78b262b25d149efd36e83c890d26870d&searchtype=a
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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