Mixed acid fermentation is an
anaerobicAnaerobic is a technical word which literally means without air , as opposed to aerobic.In wastewater treatment the absence of oxygen is indicated as anoxic; and anaerobic is used to indicate the absence of a common electron acceptor such as nitrate, sulphate or oxygen...
fermentation where the products are three acids (
lactateLactic acid , also known as milk acid, is a chemical compound that plays a role in several biochemical processes. It was first isolated in 1780 by a Swedish chemist, Carl Wilhelm Scheele, and is a carboxylic acid with a chemical formula of C
3H
6O
3...
,
acetateAn acetate, or ethanoate, is either a salt or ester of ethanoic acid.In chemistry, the abbreviation Ac refers to the acetyl group. The anion and the functional group may be written as −OAc and AcO−, or OAc respectively...
and
formateFormate or methanoate is the ion CHOO− or HCOO− . It is the simplest carboxylate anion.A formate is a salt or ester of formic acid.See also formic acid....
) as well as
ethanolEthanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug, best known as the type of alcohol found in alcoholic beverages and in modern thermometers. Ethanol is one of the oldest recreational drugs...
and equal amounts of H
2 and CO
2. It is characteristic for members of the
EnterobacteriaceaeThe Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli...
family.
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Mixed acid fermentation is an
anaerobicAnaerobic is a technical word which literally means without air , as opposed to aerobic.In wastewater treatment the absence of oxygen is indicated as anoxic; and anaerobic is used to indicate the absence of a common electron acceptor such as nitrate, sulphate or oxygen...
fermentation where the products are three acids (
lactateLactic acid , also known as milk acid, is a chemical compound that plays a role in several biochemical processes. It was first isolated in 1780 by a Swedish chemist, Carl Wilhelm Scheele, and is a carboxylic acid with a chemical formula of C
3H
6O
3...
,
acetateAn acetate, or ethanoate, is either a salt or ester of ethanoic acid.In chemistry, the abbreviation Ac refers to the acetyl group. The anion and the functional group may be written as −OAc and AcO−, or OAc respectively...
and
formateFormate or methanoate is the ion CHOO− or HCOO− . It is the simplest carboxylate anion.A formate is a salt or ester of formic acid.See also formic acid....
) as well as
ethanolEthanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug, best known as the type of alcohol found in alcoholic beverages and in modern thermometers. Ethanol is one of the oldest recreational drugs...
and equal amounts of H
2 and CO
2. It is characteristic for members of the
EnterobacteriaceaeThe Enterobacteriaceae are a large family of bacteria, including many of the more familiar pathogens, such as Salmonella and Escherichia coli...
family.
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