Study of Vanillin, Syringaldehyde and Gallic Acid Content in Oak Wood and Wine Spirit Mixtures: Influence of Heat Treatment and Chip Size

Vanillin, syringaldehyde and gallic acid are phenolic compounds which can be detected in spirits which have undergone a process of ageing in oak casks. A study has been carried out on the influence that the use of oak chips has on the aldehyde and aromatic acid content of spirits they are in contact with. These substances are to a great extent responsible for the organoleptic properties of drinks such as wine, rum, whisky and brandy, etc. This study tries to determine the influence of chip size and the time that wood must be subjected to heat treatment. It has been proved that chips particles with a diameter of 3-5 mm favour extraction processes, and that 5-6 h heat treatment allows an adequate decay of lignin, with the subsequent formation of aromatic aldehydes.

[1]  P. Ribéreau-Gayon,et al.  Intervention du bois de chêne dans l'évolution des vins rouges élevés en barriques , 1982 .

[2]  M. C. Martínez,et al.  Influence of Wood Heat Treatment, Temperature and Maceration Time on Vanillin, Syringaldehyde, and Gallic Acid Contents in Oak Wood and Wine Spirit Mixtures , 1996, American Journal of Enology and Viticulture.

[3]  M. Moutounet,et al.  Phenolic compounds in an ethanol-water extract of oak wood and in a brandy , 1992 .

[4]  C. C. Ruiz,et al.  Simultaneous determination of vanillin and syringaldehyde in rum by derivative spectrophotometry , 1990 .

[5]  M. Moutounet,et al.  Effect of Heat Treatment of Oak Wood Extractable Compounds , 1990 .

[6]  F. Sarni,et al.  Delignification of Oak Wood with an Ethanol-Water Solution in a Flow-Through Reactor , 1990 .

[7]  J. Maga.  The contribution of wood to the flavor of alcoholic beverages , 1989 .

[8]  J. Puech.  Phenolic compounds in oak wood extracts used in the ageing of brandies , 1988 .

[9]  M. Huuska,et al.  Latest advances in thermal and catalytic reactions of the ether bond in coal and related model compounds , 1987 .

[10]  J. Maga.  The flavor chemistry of wood smoke , 1987 .

[11]  J. Puech,et al.  Extraction et évolution des composés phénoliques du bois de chêne au cours du vieillissement des whiskies , 1986 .

[12]  J. Puech.  Characteristics of Oak Wood and Biochemical Aspects of Armagnac Aging , 1984, American Journal of Enology and Viticulture.

[13]  R. Fenner,et al.  Examination of the thermal decomposition of kraft pine lignin by Fourier transform infrared evolved gas analysis , 1981 .

[14]  V. L. Singleton,et al.  Wood Chips and Wine Treatment; the Nature of Aqueous alcohol extracts , 1961, American Journal of Enology and Viticulture.