Results 171 to 180 of about 27,250 (219)

Spectroscopic studies on the antioxidant activity of p-coumaric acid

Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2013
p-coumaric acid (4-hydroxycinnamic acid), a phenolic acid, is a hydroxyl derivative of cinnamic acid. It decreases low density lipoprotein (LDL) peroxidation and reduces the risk of stomach cancer. In vitro radical scavenging and antioxidant capacity of p-coumaric acid were clarified using different analytical methodologies such as total antioxidant ...
Ismail Kilic
exaly   +4 more sources

P-coumaric Acid: Advances in Pharmacological Research Based on Oxidative Stress

Current Topics in Medicinal Chemistry
Abstract: P-coumaric acid is an important phenolic compound that is mainly found in fruits, vegetables, grains, and fungi and is also abundant in Chinese herbal medicines. In this review, the pharmacological research progress of p-coumaric acid in recent years was reviewed, with emphasis on its role and mechanism in oxidative stress-related diseases ...
Feixiang Chen, Xinxin Zhang, Junxiang Wang, Fukai Wang, Jinlong Mao   +4 more
exaly   +3 more sources

Benefits of p-coumaric acid in mice with rotenone-induced neurodegeneration

Metabolic Brain Disease, 2022
The paper examines the use of natural antioxidant and anti-inflammation substances as therapeutic candidates for brain disease. Para-coumaric acid (pCA), a phenolic compound with a variety of medicinal properties, was used against deterioration caused by various diseases.
Nurinee Dolrahman, Waritsara Mukkhaphrom, Jeanjira Sutirek, Wachiryah Thong-asa   +3 more
openaire   +2 more sources

Solvation of p-Coumaric Acid in Water

The Journal of Physical Chemistry B, 2007
The photoactive yellow protein (PYP) is an important model protein for many (photoactive) signaling proteins. Key steps in the PYP photocycle are the isomerization and protonation of its chromophore, p-coumaric acid (pCA). In the ground state of the protein, this chromophore is in the trans configuration with its phenolic oxygen deprotonated.
Leenders, E.J.M., VandeVondele, J., Bolhuis, P.G., Meijer, E.J.   +3 more
openaire   +5 more sources

Biotransformation of p-coumaric acid by Paecilomyces variotii

Letters in Applied Microbiology, 2006
To investigate the biotransformation of p-coumaric acid into p-hydroxybenzoic acid (p-HBA) by Paecilomyces variotii Bainier MTCC 6581.As a result of p-coumaric acid degradation by P. variotii, three phenolic metabolites, p-hydroxybenzaldehyde (p-HBAld), p-HBA and protocatechuic acid were formed. These phenolics were detected using TLC and HPLC.
A, Sachan, S, Ghosh, A, Mitra
openaire   +2 more sources

p -Coumaric acid esters from Tanacetum longifolium

Phytochemistry, 2003
Two new long chain alkyl p-coumaric acid esters (2-3) along with eicosanyl trans-p-coumarate (1) were isolated from chloroform extract of the roots of Tanacetum longifolium. The structures of new compounds were assigned as 21'-hydroxyheneicosanyl-4-hydroxy-(cis and trans) p-coumarate (2a, 2b) and 27'-hydroxy heptacosanyl-cis-p-coumarate (3) by ...
Umar, Mahmood, Vijay K, Kaul, Ruchi, Acharya, Leopold, Jirovetz   +3 more
openaire   +2 more sources

p-Coumaric acid abatement by ozone in aqueous solution

Water Research, 1995
Abstract The ozonation process of p-coumaric acid in aqueous solution is studied by identification and quantitative evaluation of intermediates and final oxidation products. In all the investigated pH range (2.0–8.0) the initial oxidation step is represented by the direct attack of ozone to the exocyclic double bond, following oxidation steps being ...
R. ANDREOZZI, CAPRIO, VINCENZO, M. G. D'AMORE, A. INSOLA   +3 more
openaire   +3 more sources

Dichloro-p-coumaric Acid and Coumaric Acid: their Effect on the Geotropism of Roots

Nature, 1970
WE present here the first clear evidence that the positive geotropic response of roots can be prevented by dichloro-p-coumaric acid and p-coumaric acid.
T, Koizumi, H, Harada
openaire   +2 more sources

Tyrosinase inhibitory p‐Coumaric acid from Ginseng leaves

Phytotherapy Research, 1999
By bioassay-guided fractionation using mushroom tyrosinase, p-coumaric acid was characterized as the principal tyrosinase inhibitor from the fresh leaves of Panax ginseng (Araliaceae). It inhibited the oxidation of L-tyrosine more strongly than that of L-3, 4-dihydroxyphenylalanine (L-DOPA) by this enzyme.
J Y, Lim, K, Ishiguro, I, Kubo
openaire   +2 more sources

Fluorometric determination of p-coumaric acid in beer

Journal of Agricultural and Food Chemistry, 1988
A new spectrofluorometric method to determine p-coumaric acid in beer has been developed. After the pH of the samples was adjusted to 2, impurities were extracted into hexane. Phenolics were then extracted into ethyl acetate, dried, and redissolved in water.
Francisco Garcia-Sanchez, Cristobal Carnero, Antonio Heredia   +2 more
openaire   +1 more source