Results 221 to 230 of about 63,124 (262)
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Acta Crystallographica Section C Crystal Structure Communications, 2000
In the crystal structure of the title compound, 3,4,5-trihydroxybenzoic acid monohydrate, C7H6O5·H2O, the gallic acid molecule has an intramolecular hydrogen bond involving a pair of hydroxyl groups, and it is also linked to a water molecule by a three-centre (bifurcated) OW—H⋯O hydrogen bond.
R W, Jiang +3 more
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In the crystal structure of the title compound, 3,4,5-trihydroxybenzoic acid monohydrate, C7H6O5·H2O, the gallic acid molecule has an intramolecular hydrogen bond involving a pair of hydroxyl groups, and it is also linked to a water molecule by a three-centre (bifurcated) OW—H⋯O hydrogen bond.
R W, Jiang +3 more
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Recovery of gallic acid from gallic acid processing wastewater
Environmental Technology, 2014In this paper, an extraction technology has been investigated to recover gallic acid (GA) from GA processing wastewater. The effects of phase ratio and pH on the extraction behaviour of tributyl phosphate (TBP)/kerosene were investigated using TBP as the extractant and kerosene as the diluent.
Yundong, Wu +4 more
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Gallic Acid and Gallic Acid Derivatives: Effects on Drug Metabolizing Enzymes
Current Drug Metabolism, 2003Gallic acid and its structurally related compounds are found widely distributed in fruits and plants. Gallic acid, and its catechin derivatives are also present as one of the main phenolic components of both black and green tea. Esters of gallic acid have a diverse range of industrial uses, as antioxidants in food, in cosmetics and in the ...
Yin-Yin, Ow, Ieva, Stupans
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Antimicrobial Properties of Mandelic Acid, Gallic Acid and their Derivatives
Mini-Reviews in Medicinal Chemistry, 2021Purpose: Alpha-hydroxy acids (AHAs) are one of the classes of hydroxy acids being beneficial for human health. The manuscript summarizes the biological properties of two popular members of AHAs, i.e., Mandelic Acid (MA) and Gallic Acid (GA), with particular emphasis on antimicrobial properties.
Choińska, Renata +4 more
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Hexavalent chromium reduction by gallic acid
Chemosphere, 2021Cr(VI) is widely used in industry and often large quantities have been accidently or due to lack of precautions released at the environment. The presence of high concentrations of Cr(VI) in waste streams causes concern due to its toxicity and solubility. However the Cr(III) is a useful micronutrient in human diet.
Christiana, Mystrioti +3 more
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Physical Chemistry Chemical Physics, 1999
Using the pulse radiolysis technique, studies on reactions of 3,4,5-trihydroxybenzoic acid [gallic acid (GA)] with radical species generated in water are reported. At pH 6.8 and 9.7, OH radicals react with GA to give an adduct initially with rate constants of the order of 1×1010 d mol-1 s-1.
P Dwibedy +4 more
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Using the pulse radiolysis technique, studies on reactions of 3,4,5-trihydroxybenzoic acid [gallic acid (GA)] with radical species generated in water are reported. At pH 6.8 and 9.7, OH radicals react with GA to give an adduct initially with rate constants of the order of 1×1010 d mol-1 s-1.
P Dwibedy +4 more
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Enzymatic gallic acid esterification
Biotechnology and Bioengineering, 1985AbstractGallic acid esters of n‐propyl and amyl alcohols have been produced by enzymatic synthesis in organic solvents using immobilized tannase. Studies indicate that maximum esterification of gallic acid occurs with amyl alcohol. The enzyme shows broad alcohol specificity.
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Trigallic Acid or Trimeric Gallic Acid
Bulletin des Sociétés Chimiques Belges, 1983AbstractTrigallic acid was isolated by Counter Current Distribution from a partial acid hydrolysate of Chinese tannic acid. Trigallic acid in polar solvents solution occurs in four isomeric forms. This is revealed by the four peaks obtained with reversed phase high performance liquid chromatography. Their ratio is function of the solvent.
P. Delahaye +3 more
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Degradation of gallic acid by Aspergillus flavus
Zentralblatt für Mikrobiologie, 1987Aspergillus flavus utilized gallic acid as sole carbon source and increased in presence of glucose and sucrose. The enzymes were inducible in nature and during degradation of gallic acid. 4-carboxy, 2-hydroxy cis, cis-muconic acid and pyruvic acid were detected. The estradiol (meta) fission of gallic acid by A. flavus was postulated.
G, Gurujeyalakshmi, A, Mahadevan
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Anti-Inflammatory Activity of Gallic Acid
Planta Medica, 1992Gallic acid was found to possess antiinflammatory activity towards zymosan-induced acute food pad swelling in mice. In vitro studies on the mode of action of gallic acid revealed that this compound interferes with the functioning of polymorphonuclear leukocytes (PMNs).
B H, Kroes +4 more
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