Acetate is a chemical compound with a formula C2H3O2−. It is also known as Acetate Ion or Monoacetate. It is a salt formed by the combination of acetic acid with alkaline, metallic, earthy, or nonmetallic or other bases.
The conversion of pyruvate to acetyl-coenzyme A is carried out with the help of an enzyme called pyruvate dehydrogenase. The acetyl-CoA is further converted to acetate in E. coli and simultaneously produces ATP by substrate-level phosphorylation. The entire process requires two enzymes viz acetate kinase and phosphate acetyltransferase.
acetyl-CoA + Phospate → acetyl-Phospate+CoA
acetyl-Phospate+ADP → acetate + ATP
Acetic acid undergoes dismutation reaction to generate carbon dioxide and methane.
CH3COO− + H+ → CH4 + CO2 ΔG° = −36 kJ/mol
The reaction is carried out in the presence of catalyst methanogen archaea. One electron is transferred from the carboxylic group to the methyl group of acetic acid to generate carbon dioxide and methane gas.
|Molecular Weight of Acetate||59.044 g/mol|
|Monoisotopic Mass of Acetate||59.013 g/mol|
|Conjugate acid||Acetic acid|
Acetate is used as a solvent in paints, inks, coatings.
Cellulose acetate is used eyeglass frame.
It is used in diapers.
Potassium acetate is used as a food preservative.
It is used in laboratories.
Aluminium acetate is used as an anti stringent.
The acetate anion is one from the carboxylate family. It is considered as a conjugate base of acetic acid. Acetic acid gets converted to acetate at a pH above 5.5. A common anion in biology where organisms utilize it in the form of acetyl coenzyme A. It is proposed that acetate produced by oxidizing ethanol is a key factor to cause hangovers.