Now showing items 21-30 of 291
Phenolic Derivatives from Fruits of Dipteryx lacunifera DUCKE and Evaluation of Their Antiradical Activities
(Helvetica Chimica Acta, 2008-01-01) [Artigo]
The fruits of Dipteryx lacunifera, known as 'fava de morcego' and 'garampara', comprise pleasant tasting kernels that contain high amounts of fatty acids (mainly oleic acid) and are commonly consumed by inhabitants of the ...
Caracterização anatômica, química e antibacteriana de folhas de Brunfelsia uniflora (manacá) presentes na Mata Atlântica
(Revista Brasileira de Farmacognosia, 2009-03-01) [Artigo]
Brunfelsia uniflora é uma espécie pertencente à família Solanaceae conhecida popularmente como manacá e empregada em medicina popular, suas folhas são empregadas contra artrite, reumatismo, sífilis, picadas de cobra, febre ...
Strontium zirconate heterogeneous catalyst for biodiesel production: Synthesis, characterization and catalytic activity evaluation
(Applied Catalysis A: General, 2012-11-28) [Artigo]
Strontium zirconate oxide was synthesized by co-precipitation and the citrate route and was evaluated as a heterogeneous catalyst for biodiesel production. The catalyst samples were characterized by XRD, FTIR, and TG, and ...
Simultaneous Determination of Ba, Cr, Mo (Group 1), and Cu, Fe, Ni, and Pb (Group 2) in Commercial Fuel Ethanol by Graphite Furnace AAS
(Atomic Spectroscopy, 2008-11-01) [Artigo]
The direct and simultaneous determination of Ba, Cr, and Mo (group 1) and of Cu, Fe, Ni, and Pb (group 2) in commercial fuel ethanol by graphite furnace atomic absorption spectrometry is proposed employing no chemical ...
Indigofera suffruticosa Mill as new source of healing agent: Involvement of prostaglandin and mucus and heat shock proteins
(Journal of Ethnopharmacology, 2011-09-01) [Artigo]
Ethnopharmacological relevance: Indigofera suffruticosa is specie typical of the Cerrado or Brazilian savannah; it is a member of the Fabaceae family - in folkmedicine is used for gastric disorders, infection and ...
In vitro Trypanocidal Activity of Phenolic Derivatives from Peperomia obtusifolia
(Planta Medica, 2009-05-01) [Artigo]
The trypanocidal activity of crude extracts and fractions from the leaves and stems of Peperomia obtusifolia (Piperaceae) was evaluated in vitro against the epimastigote forms of Trypanosoma cruzi. Bioactivity-guided ...
Application of MALDI-MS analysis of Rainforest chemodiversity: a keystone for biodiversity conservation and sustainable use
(Journal of Mass Spectrometry, 2012-11-01) [Artigo]
Molecular physicochemical parameters predicting antioxidant activity of Brazilian natural products
(Revista Brasileira de Farmacognosia-brazilian Journal of Pharmacognosy, 2009-10-01) [Artigo]
Reactive oxygen species (ROS) are capable of oxidizing cellular proteins, nucleic acids and lipids, contributing to cellular aging, mutagenesis, carcinogenesis, coronary heart and neurodegenerative diseases. Free ...
Chemical Constituents of Aristolochia giberti
(Journal of the Brazilian Chemical Society, 2009-01-01) [Artigo]
Fourteen compounds were isolated from Aristolochia giberti. These included a new triterperne, (-)-onocera-8,8'-diol. In addition, 3-hydroxypropanoate, acetate, and formate were detected by NMR techniques, which suggests ...
Molecular Docking and Molecular Dynamic Studies of Semi-Synthetic Piperidine Alkaloids as Acetylcholinesterase Inhibitors
(Journal of the Brazilian Chemical Society, 2012-01-01) [Artigo]
The mixture of semi-synthetic derivatives (-)-3-O-acetyl-cassine hydrochloride and (-)-3-O-acetyl-spectaline hydrochloride, prepared from the mixture of natural alkaloids (-)-cassine and (-)-spectaline (4:1) isolated from ...