Chemical characterization of different wood fragments and their volatile composition in model spirit solutions

Author:

Smailagic Anita1ORCID,Veljovic Sonja2ORCID,Levic Steva3ORCID,Solevic-Knudsen Tatjana4ORCID,Nedovic Viktor3,Pavlovic Vladimir3ORCID,Natic Maja5ORCID

Affiliation:

1. University of Belgrade, Innovation Center, Faculty of Chemistry Ltd, Belgrade, Serbia

2. University of Kragujevac, Faculty of Hotel Management and Tourism, Vrnjačka Banja, Serbia

3. University of Belgrade, Faculty of Agriculture, Belgrade, Serbia

4. University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Belgrade, Serbia

5. University of Belgrade, Faculty of Chemistry, Belgrade, Serbiа

Abstract

This study characterizes oak (sessile and pedunculate oak) and alternative wood (black locust, Myrobalan plum, wild cherry, and mulberry) species as important sources of volatile compounds of aged spirits. Nowadays, their fragments are used to hasten the brandies? aging process. The ATR-FTIR spectra of analyzed wood samples are similar, only the mulberry FTIR spectrum contains unique peaks primarily due to its highest lignin content (40.93%). Using the untargeted GC-MS approach, a total of forty-one volatile compounds were identified in the wood extracts in a model spirit solution. The volatile profiles of alternative wood extracts in a model spirit solution were significantly different, both quantitatively and qualitatively, compared to those of oak. Coniferyl (23.14 ?g/g?26.6 ?g/g) and sinapyl (23.56 ?g/g?25.82 ?g/g) alcohols were the most abundant volatile compounds in investigated oak extracts. Resorcinol and coniferyl alcohol were the most abundant volatile compounds in black locust, sakuranin in wild cherry, while resorcinol and ?-resorcinaldehyde in mulberry wood. To the best of our knowledge, sakuranin has not been detected in wild cherry wood until now. Besides wood chemical characteristics, the technology used during the aging process strongly influences on volatile profiles of aged brandies, thus, these compounds are potential chemical markers for discrimination between wood species as well as aging technologies.

Funder

Ministry of Education, Science and Technological Development of the Republic of Serbia

Publisher

National Library of Serbia

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