''o''-Coumaric acid is a
hydroxycinnamic acid, an organic compound that is a
hydroxy derivative of
cinnamic acid. There are three
isomer
In chemistry, isomers are molecules or polyatomic ions with identical molecular formulae – that is, same number of atoms of each element – but distinct arrangements of atoms in space. Isomerism is existence or possibility of isomers.
Iso ...
s of
coumaric acid Coumaric acid is a phenolic derivative of cinnamic acid having a hydroxy group
In chemistry, a hydroxy or hydroxyl group is a functional group with the chemical formula and composed of one oxygen atom covalently bonded to one hydrogen atom. In ...
s — ''o''-coumaric acid, ''m''-coumaric acid, and ''p''-coumaric acid — that differ by the position of the hydroxy substitution of the phenyl group.
Natural occurrence
''o''-Coumaric acid can be found in
vinegar
Vinegar is an aqueous solution of acetic acid and trace compounds that may include flavorings. Vinegar typically contains 5–8% acetic acid by volume. Usually, the acetic acid is produced by a double fermentation, converting simple sugars to et ...
.
2-Coumarate reductase
In enzymology, a 2-coumarate reductase or melilotate dehydrogenase () is an enzyme that catalyzes the chemical reaction
:3-(2-hydroxyphenyl)propanoate + NAD+ \rightleftharpoons 2-coumarate + NADH + H+
Thus, the two substrates of this enzyme ar ...
is an enzyme that produces 2-coumarate from
3-(2-hydroxyphenyl)propanoate and
NAD+. This enzyme participates in phenylalanine metabolism.
References
External links
''o''-Coumaric acid at www.phenol-explorer.eu
Hydroxycinnamic acids
Vinylogous carboxylic acids
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