Role of Organic Acids in Maturation of Distilled Spirits in Oak Casks
Open Access
- 1 January 1999
- journal article
- research article
- Published by Chartered Institute of Brewers and Distillers in Journal of the Institute of Brewing
- Vol. 105 (5) , 287-291
- https://doi.org/10.1002/j.2050-0416.1999.tb00522.x
Abstract
Maturation of whiskies and brandies in oak casks proceeds by reducing the perception of less desirable aromas of new distillates. During maturation, extraction of wood components increases the solubility of distillate compounds which reduces their headspace concentration above the matured spirit. The origins of this interaction are changes in aggregation of ethanol due to increases in contents of organic acids. During wood maturation organic acid concentrations in spirits increase as a result of extraction from cask wood, oxidation of ethanol and evaporation of ethanol and water. The effect of such changes was simulated using a model whisky ester in aqueous solutions of ethanol with acetic acid, oak wood extracts and acid fractions from new and matured Scotch malt distillates.Keywords
This publication has 13 references indexed in Scilit:
- Release of distillate flavour compounds in Scotch malt whiskyJournal of the Science of Food and Agriculture, 1999
- Headspace concentrations of ethyl esters at different alcoholic strengthsJournal of the Science of Food and Agriculture, 1998
- Effects of air flow‐rate on flavour release from liquid emulsions in the mouthInternational Journal of Food Science & Technology, 1997
- Interactions between Ethyl Esters and Aroma Compounds in Model Spirit SolutionsJournal of Agricultural and Food Chemistry, 1994
- Agglomeration of ethyl esters in model spirit solutions and malt whiskiesJournal of the Science of Food and Agriculture, 1994
- Self-association of monohydric alcohols in water: Compressibility and infrared absorption measurementsThe Journal of Chemical Physics, 1994
- Effects on Scotch whisky composition and flavour of maturation in oak casks with varying historiesInternational Journal of Food Science & Technology, 1993
- Alcohol-water mixtures revisitedPublished by Cambridge University Press (CUP) ,1989
- DESCRIPTIVE SENSORY ANALYSIS OF WHISKY FLAVOURJournal of the Institute of Brewing, 1979
- Changes in Whisky While MaturingIndustrial & Engineering Chemistry, 1949