60965 20190709135428.0 doi 10.5344/ajev.2016.16052 sideral 97921 ART-2017-97921 eng (orcid)0000-0003-2885-4668 Vela, E. Universidad de Zaragoza Effect of bentonite fining on polyfunctional mercaptans and other volatile compounds in Sauvignon blanc wines 2017 Access copy available to the general public Unrestricted Bentonite fining is the most common process used in the wine industry to remove proteins from wine. Herein, the influence of fermentative and post-fermentative fining on aroma compounds found in Sauvignon blanc wines was studied. Sauvignon blanc musts from different vintages were fined using bentonite. Conventional enological parameters, together with more than 60 volatile compounds, including varietal thiols, were determined in the bottled wines. The results showed that bentonite fining was more effective in removing proteins from wine when carried out on finished wines. Several volatile compounds were influenced by bentonite fining depending on the tim­ing of addition and the vintage. Varietal thiols, key compounds of Sauvignon blanc wine aroma, were significantly reduced when the wines were fined with bentonite, particularly when fining took place during fermentation. Results suggest that bentonite fining of musts could damage the organoleptic quality and varietal character of Sauvignon blanc wines because of its impact on polyfunctional mercaptans. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 1.765 2017 HORTICULTURE 7 / 36 = 0.194 2017 Q1 T1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY 102 / 160 = 0.637 2017 Q3 T2 FOOD SCIENCE & TECHNOLOGY 67 / 133 = 0.504 2017 Q3 T2 0.956 2017 Horticulture 2017 Q1 Food Science 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion (orcid)0000-0003-3641-9164 Hernández-Orte, P. Universidad de Zaragoza Castro, E. (orcid)0000-0002-4353-2483 Ferreira, V. Universidad de Zaragoza (orcid)0000-0002-0730-6606 Lopez, R. Universidad de Zaragoza 2009 750 Universidad de Zaragoza Dpto. Química Analítica Área Química Analítica 68, 1 (2017), 30-38 Am. j. enol. vitic. AMERICAN JOURNAL OF ENOLOGY AND VITICULTURE 0002-9254 510219 http://zaguan.unizar.es/record/60965/files/texto_completo.pdf Versión publicada 132970 http://zaguan.unizar.es/record/60965/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:60965 articulos driver 2019-07-09-11:30:56 ARTICLE