Comparative profiling analysis of woody flavouring from vine-shoots and oak chips was written by Delgado de la Torre, M. Pilar;Priego-Capote, Feliciano;Luque de Castro, M. Dolores. And the article was included in Journal of the Science of Food and Agriculture in 2014.Electric Literature of C20H40O2 The following contents are mentioned in the article:
BACKGROUNDWoody liquid flavourings extracted from different varieties of vine shoots and oak chips have been characterized by gas chromatog.-mass spectrometry to compare the profile of compounds as potential contributors to the organoleptical properties of wine and spirits aged in oak barrels. Oak chips are frequently added to barrels to accelerate the ageing process, while vine shoots are produced in high amounts in wine-producing countries. RESULTSThe extracts were isolated by superheated liquid extraction (SHLE) after optimization of extraction variables. The SHLE protocol was performed using ethanol-water mixtures (pH 3) at 220 °C for 60 min. Compounds were identified using NIST databases, and the resulting profile was used as a dataset for qual. and semi-quant. comparison between extracts obtained from different varieties of vine shoots and oak chips. CONCLUSIONStatistical anal. enabled demonstration of the similarity among extracts from vine shoots and oak wood, providing the first study on this subject. The special role of phenols and furanic derivatives has been described. This study is the first stage for characterization of vine shoots as a byproduct with potential for use in the oenol. field. © 2013 Society of Chem. Industry. This study involved multiple reactions and reactants, such as Methyl nonadecanoate (cas: 1731-94-8Electric Literature of C20H40O2).
Methyl nonadecanoate (cas: 1731-94-8) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Electric Literature of C20H40O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics