Chemical Properties
clear colorless liquid
Chemical Properties
Ethyl nonanoate has a slightly fatty, oily, nutty, fruity, odor reminiscent of cognac with a rosy-fruity note.
Occurrence
Reported found in pineapple, banana, plum, apple, Parmesan cheese, milk, beer, cognac, rum, whiskey, grape
wines, plum and pear brandy, wheaten bread, beef and corn oil, grape, plum and elderberry.
Definition
ChEBI: A fatty acid ethyl ester of nonanoic acid.
Preparation
By distillation of pelargonic acid and ethyl alcohol in toluene in the presence of small amounts of muriatic acid (HCl);
also by hydrogenation of oenanthylidene acetate in the presence of Ni at 180°C.
Aroma threshold values
Detection: 12 ppm
Taste threshold values
Taste characteristics at 5.0 ppm: fruity, estry, green, waxy and fatty with banana and tropical nuances.
General Description
Ethyl nonanoate is separated and quantified from cachaca, rum and whisky by direct injection gas chromatography spectrometry. It is used as the internal standard to monitor the solid-phase micro-extraction fibre extraction integrity and efficiency.
