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Butyric acid is an acid produced by bacteria that produce syrup for beer, or can be produced during wort production. When the content of butyric acid in beer exceeds 2-3 mg/litre, the beer tastes like metamorphic milk or rotten butter. To avoid this result, acidic sputum should be kept above 90 °F and have minimal contact with oxygen.
Butyric acid (/ ˈ b j uː t ɪ r ɪ k /; from Ancient Greek: βούτῡρον, meaning "butter"), also known under the systematic name butanoic acid, is a straight-chain alkyl carboxylic acid with the chemical formula CH 3 CH 2 CH 2 COOH. It is an oily, colorless liquid with an unpleasant odor.
Foam stability is an important concern for the first perception of the beer by the consumer and is therefore the object of the greatest care by the brewers and the barmen in charge to serve draft beer, or to properly pour beer into a glass from the bottle (with a good head retention and without overfoaming, or gushing when opening the bottle).
Print/export Download as PDF; Printable version; In other projects ... butyric acid: 107-92-6 HN(CH 2 CH 2 OH) 2: diethanolamine: 111-42-2 HN(CH 2 CH 2 NH 2) 2 ...
The word "butyl" is derived from butyric acid, a four-carbon carboxylic acid found in rancid butter. [1] The name "butyric acid" comes from Latin butyrum, butter. Subsequent preferred IUPAC names for alkyl radicals in the series are simply named from the Greek number that indicates the number of carbon atoms in the group: pentyl, hexyl, heptyl ...
Butyl butyrate, or butyl butanoate, is an organic compound that is an ester formed by the condensation of butyric acid and n-butanol. It is a clear, colorless liquid that is insoluble in water, but miscible with ethanol and diethyl ether. Its refractive index is 1.406 at 20 °C.
The categories are varied and include processes or ingredients not usually regarded as defining beer styles in themselves, such as cask ale or gluten-free beer. [2] [3] [4] Beer terms such as ale or lager cover a wide variety of beer styles, and are better thought of as broad categories of beer styles.
This is a list of alcoholic drinks. An alcoholic drink is a drink that contains ethanol , commonly known as alcohol . Alcoholic drinks are divided into three general classes: beers , wines , and distilled beverages .