Tergallic acid
Encyclopedia
Tergallic acid a trimer
of the gallic acid
being connected with
glucose. Tergallic acid O- or C-glucosides that can be found in acorns of several Quercus (oak) species. The dehydrated tergallic acid C-glucoside and tergallic acid O-glucoside can be characterised in the acorns of Quercus macrocarpa. Dehydrated
tergallic-C-glucoside (m/z 613) can be found in the cork from Quercus suber.
Tergallic acid glucosides can also be found in Terminalia chebula
.
Tergallic acid dilactone can be found in Rhynchosia volubilis
seeds.
The chemical formula is not the same as given by Kinjo et al (molecule with an ether link between the ellagic and gallic acid residues) or by Cantos, Chapman and Fernandes et al (molecule with a carbon-carbon link). Cantos, Fernandes and Chapman called the molecule with an ether link valoneic acid dilactone
while Kinjo and Shuaibu et al called the molecule with a carbon-carbon link flavogallonic acid dilactone
.
Trimer (chemistry)
In chemistry, a trimer is a product derived from three identical precursors. Trimers are typically cyclic. Chemical compounds that often trimerise are aliphatic isocyanates and cyanic acids. Often, trimerization competes with polymerization....
of the gallic acid
Gallic acid
Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. The chemical formula is C6H23COOH. Gallic acid is found both free and as part of...
being connected with
glucose. Tergallic acid O- or C-glucosides that can be found in acorns of several Quercus (oak) species. The dehydrated tergallic acid C-glucoside and tergallic acid O-glucoside can be characterised in the acorns of Quercus macrocarpa. Dehydrated
Dehydration reaction
In chemistry and the biological sciences, a dehydration reaction is usually defined as a chemical reaction that involves the loss of water from the reacting molecule. Dehydration reactions are a subset of elimination reactions...
tergallic-C-glucoside (m/z 613) can be found in the cork from Quercus suber.
Tergallic acid glucosides can also be found in Terminalia chebula
Terminalia chebula
Terminalia chebula is a species of Terminalia, native to southern Asia from India and Nepal east to southwestern China , and south to Sri Lanka, Malaysia and Vietnam.It is a deciduous tree growing to tall, with a trunk up to in diameter...
.
Tergallic acid dilactone can be found in Rhynchosia volubilis
Rhynchosia volubilis
Rhynchosia volubilis is a plant species in the genus Rhynchosia.Tergallic acid dilactone can be found in R. volubilis seeds....
seeds.
The chemical formula is not the same as given by Kinjo et al (molecule with an ether link between the ellagic and gallic acid residues) or by Cantos, Chapman and Fernandes et al (molecule with a carbon-carbon link). Cantos, Fernandes and Chapman called the molecule with an ether link valoneic acid dilactone
Valoneic acid dilactone
Valoneic acid dilactone is a hydrolysable tannin that can be isolated from the heartwood of Shorea laeviforia....
while Kinjo and Shuaibu et al called the molecule with a carbon-carbon link flavogallonic acid dilactone
Flavogallonic acid dilactone
Flavogallonic acid dilactone is a hydrolysable tannin that can be found in Rhynchosia volubilis seeds, in Shorea laeviforia, in Anogeissus leiocarpus and Terminalia avicennoides....
.