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Production of coumaric acid from sugarcane bagasse
Innovative Food Science and Emerging Technologies, 2009Abstract Phenolic acids were released from sugarcane bagasse by alkaline hydrolysis at 30 °C for 4 h; The alkaline hydrolysates were ultrafiltrated, the permeates purified with anion exchange resin. The phenolic acids bound by the resin were desorbed by a mixture of water–ethanol–HCl solution (36: 60: 4) after washing the resin with water, ethanol ...
S.Y. Ou +3 more
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Dichloro-p-coumaric Acid and Coumaric Acid: their Effect on the Geotropism of Roots
Nature, 1970WE 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
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Solvation of p-Coumaric Acid in Water
The Journal of Physical Chemistry B, 2007The 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. +3 more
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Electroanalytical Oxidation ofp‐Coumaric Acid
Analytical Letters, 2007The mechanism of the electrochemical oxidation of p-coumaric acid on a glassy carbon electrode was investigated using cyclic, differential pulse and square wave voltammetry at different pHs. The oxidation of p-coumaric acid is irreversible over the whole pH range.
Janeiro, Patricia +3 more
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Biotransformation of p-coumaric acid by Paecilomyces variotii
Letters in Applied Microbiology, 2006To 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
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p -Coumaric acid esters from Tanacetum longifolium
Phytochemistry, 2003Two 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 +3 more
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Synthesis and properties of coumaric acid derivative homo-polymers
Journal of Biomaterials Science, Polymer Edition, 2008Poly(4-hydroxycinnamic acid) (P4HCA), poly(3-hydroxycinnamic acid) (P3HCA), poly(3-methoxy-4-hydroxycinnamic acid) (PMHCA) and poly(3,4-dihydroxycinnamic acid) (PDHCA) were synthesized by the thermal poly-condensation of the corresponding monomers, which are lignin precursors, coumaric acid derivatives consisting of cinnamoyl groups and different ...
Tran Hang, Thi +4 more
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Retention of coumaric acid by soil and its colloidal components
Water, Air, and Soil Pollution, 1990In this study of the behavior of coumaric acid added to soil, the disappearance of the acid was found to be due to adsorption plus microbial degradation, and was influenced by the concentration and contact time. Adsorption experiments set up with soils varying widely in their chemical and physical properties, showed that the Freundlich isotherm fits ...
Riffaldi R. +2 more
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