Journal
FOOD CHEMISTRY
Volume 165, Issue -, Pages 271-281Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2014.05.016
Keywords
Oak chip; Micro-oxygenation; Experimental design; Anthocyanins; Flavan-3-ols; Colour
Funding
- Spanish Ministry of Science and Innovation [CTQ2008-03493/BQU]
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The aim of the present work was to evaluate the effect of the main factors conditioning accelerated ageing processes (oxygen dose, chip dose, wood origin, toasting degree and maceration time) on the phenolic and chromatic profiles of red wines by using a multivariate strategy based on experimental design methodology. The results obtained revealed that the concentrations of monomeric anthocyanins and flavan-3-ols could be modified through the application of particular experimental conditions. This fact was particularly remarkable since changes in phenolic profile were closely linked to changes observed in chromatic parameters. The main strength of this study lies in the possibility of using its conclusions as a basis to make wines with specific colour properties based on quality criteria. To our knowledge, the influence of such a large number of alternative ageing parameters on wine phenolic composition and chromatic attributes has not been studied previously using a comprehensive experimental design methodology. (C) 2014 Elsevier Ltd. All rights reserved.
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