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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.
The majority of compounds in beer come from the metabolic activities of plants and yeast and so are covered by the fields of biochemistry and organic chemistry. [1] The main exception is that beer contains over 90% water and the mineral ions in the water (hardness) can have a significant effect upon the taste. [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.
1,1-dimethylhydrazine: 57-14-7 C 2 H 8 N 2: 1,2-dimethylhydrazine: 540-73-8 (CH 3) 2 SO: dimethyl sulfoxide: 67-68-5 C 4 H 8 O 2: 1,4-Dioxane: 123-91-1 C 2 H 6 O: ethanol: 64-17-5 CH 3 CH 2 NH 2: ethylamine: 75-04-7 C 2 H 6 O 2: ethylene glycol: 107-21-1 HCOOH: formic acid: 64-18-6 C 5 H 6 O 2: furfuryl alcohol: 98-00-0 C 3 H 8 O 3: glycerol ...
Pentyl butyrate, also known as pentyl butanoate or amyl butyrate, is an ester that is formed when pentanol is reacted with butyric acid, [1] usually in the presence of sulfuric acid as a catalyst. This ester has a smell reminiscent of pear or apricot. This chemical is used as an additive in cigarettes.
Sodium butyrate is a compound with formula Na(C 3 H 7 COO). It is the sodium salt of butyric acid.It has various effects on cultured mammalian cells including inhibition of proliferation, induction of differentiation and induction or repression of gene expression. [1]