Now showing items 1-10 of 94
HPLC-ESI-MS/MS analysis of oxidized di-caffeoylquinic acids generated by metalloporphyrin-catalyzed reactions
(Sociedade Brasileira de Química, 2008)
This paper reports an HPLC-ESI-MS/MS investigation on the oxidation of 3,5- and 4,5- dicaffeoylquinic acid using iron(III) tetraphenylporphyrin chloride as catalyst. Two major mono-oxidised products of the quinic acid ...
LC-MSn analysis of the cis isomers of chlorogenic acids
(ELSEVIER SCI LTD, 2008)
The behaviour of cis isomers of selected mono- and di-acyl chlorogenic acids produced by UV-irradiation has been investigated by LC-MSn. cis Isomers fragment identically to the more common trans isomers. cis-5-Acyl chlorogenic ...
Effects of Caffeoylquinic Acid Derivatives and C-Flavonoid from Lychnophora ericoides on in vitro Inflammatory Mediator Production
(NATURAL PRODUCTS INC, 2010)
In this study we aimed at evaluating the effect of the major polar constituents of the medicinal plant Lychnophora ericoides on the production of inflammatory mediators produced by LPS-stimulated U-937 cells. The ...
Chemical profiling of six samples of Brazilian propolis
(Sociedade Brasileira de Química, 2013-01-01)
Six samples of Brazilian propolis from Minas Gerais and Paraná states were analyzed to identify the constituents (GC/MS and HPLC/MS) and to determine their contents (HPLC and external standardization). All samples contained ...
Free radical scavengers from Mutisia friesiana (Asteraceae) and Sanicula graveolens (Apiaceae)
(John Wiley & Sons, Ltd., 2007)
Effect of Chlorogenic Acid (5-Caffeoylquinic Acid) Isolated from Baccharis oxyodonta on the Structure and Pharmacological Activities of Secretory Phospholipase A2 from Crotalus durissus terrificus
(Hindawi Publishing Corporation, 2014-01-01)
The aim of this paper was to investigate the effect of chlorogenic acid (5-caffeoylquinic acid, 5CQA), isolated from Baccharis oxyodonta, on the structure and pharmacological effect of secretory phospholipase A2 (sPLA2) ...
THE RELATIONSHIP BETWEEN THE STATE OF MATURITY OF RAW COFFEE BEANS AND THE ISOMERS OF CAFFEOYLQUINIC ACID
(Elsevier Sci LtdOxfordInglaterra, 1994)
Inhibitory effects of Solidago chilensis Meyen hydroalcoholic extract on acute inflammation
(ELSEVIER IRELAND LTD, 2009)
Aim of the study: Alcoholic or hydroalcoholic preparations of the plant Solidago chilensis Meyen (Asteraceae) are employed in popular medicines to treat inflammation. The anti-inflammatory effects of the hydroalcoholic ...
Neuropharmacological effects in mice of Lychnophora species (Vernonieae, Asteraceae) and anticonvulsant activity of 4,5-di-O-[E]-caffeoylquinic acid isolated from the stem of L-rupestris and L-staavioides
(BLACKWELL PUBLISHING, 2008)
Aiming at contributing with the search for neuroactive substances from natural sources, we report for the first time antinociceptive and anticonvulsant effects of some Lychnophora species. We verify the protective effects ...