fusel oil

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fusel oil

(fyo͞o`zəl), oily, colorless liquid with a disagreeable odor and taste. It is a mixture of alcohols (largely amyl alcohols) and fatty acids, formed during the alcoholic fermentation of organic materials. After imperfect distillation of these fermentation products it becomes an impurity in the distilled liquor. Fusel oil is used as a solvent in the manufacture of certain lacquers and enamels (it dissolves nitrocellulose). It has a detrimental effect on the human system.

Fusel Oil

 

a by-product of ethyl alcohol fermentation. Ethyl alcohol may yield 0.4–0.6 percent fusel oil, with a density of 0.83–0.84 g/cm3 at 20°C. The fusel oil is in the form of a light yellow to dark reddish brown oily liquid with an unpleasant odor that irritates the mucous membranes of the respiratory tract. In chemical composition fusel oil is a mixture of monohydric aliphatic alcohols, including isopentyl and isobutyl alcohols, with impurities of acids, aldehydes, and other compounds. Fusel oil is poisonous.

The mixture of amyl alcohols obtained from fusel oil is used in the production of amyl acetate, and the mixture of hexyl, heptyl, octyl, and nonyl alcohols is used in the preparation of fragrances.

fusel oil

[′fyü·zəl ‚ȯil]
(materials)
A volatile, poisonous mixture of isoamyl, butyl, propyl, and heptyl alcohols produced as by-products in alcoholic fermentation of starches, grains, or fruits to produce ethyl alcohol.
References in periodicals archive ?
La transformacion del aceite de fusel en productos de mayor valor agregado ha sido estudiada desde hace tiempo.
En la Tabla 1 se exponen las condiciones de trabajo en operacion semi-continua para los ensayos de destilacion reactiva en la sintesis del ester a partir del alcohol obtenido del aceite de Fusel.
Capillary GC with a flame ionization detector has proven to be very effective in separating fusel oils and the resulting chromatograms show excellent separation of the individual components in a variety of whiskeys (Kahn et al.
Higher alcohols (>[C.sub.6], fusel alcohols) usually have a strong and pungent odor character.
for a variety of electrical work, a set of objects 21; cutting on bakelite bunch, grinding silicon carbide, diameter 180 mm; Technology, Extra brand, the mass concentration of fusel oil in anhydrous alcohol, no more than 4 mg
In terms of sensorial impact, higher alcohols (fusel alcohols) in distillates are a major concern.
"Alcohol is very clean, no fusel alcohols," said Dr.
Fusel oils can be totally removed very simply with charcoal.
This process produces poisonous impurities, called fusel oil, along with the alcohol, and distillers therefore searched for ways to moderate these impurities.
2002) for evaluating late-harvest Riesling wines: the fruity or floral intensity of the aroma, the petrol or fusel intensity of the flavor and the structure or mouthfeel.
Complete Beer Twin Test package includes: IBU, Color, Alcohol by Volume, Density, Real & Apparent Extract, Real & Apparent Attenuation, pH, Calories, Total VDK (diacetyl precursor), optional add-ons include Total Esters & Fusel Alcohols, Dissolved Oxygen, Microbiological Assessment.