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Mostrando ítems 4261-4270 de 10960
UV-Vis, FTIR and antioxidant study of Persea Americana (Avocado) leaf and fruit: A comparison
(Universidad de Cuenca, 2016-04)
Avocado (Persea americana Miller), a well-known nutritional tree crop grown in
many parts of the world. The present study compares the UV-Vis and Fourier transform infrared
spectroscopy (FTIR) spectrum of Avocado leaf ...
Phytochemical Evaluation and Antibacterial Activity of Espeletia Schultzii (Asteraceae) Inflorescences
(Facultad Experimental de Ciencias de la Universidad del Zulia, 2009)
Mutagenicity of Mouriri pusa Gardner and Mouriri elliptica Martius
(Pergamon-Elsevier B.V. Ltd, 2008-08-01)
Mouriri pusa Gardner and Mouriri elliptica Martius are fruit-bearing plants of the Melastomataceae family, popularly known in Brazil as puca-preto or jaboticaba-do-cerrado, and they are used in folk medicine for the treatment ...
Bioactive flavone dimers from Ouratea multiflora (Ochnaceae)
(Sociedade Brasileira de Farmacognosia, 2007-09-01)
Chromatographic fractionation of the organic extract from leaves of Ouratea multiflora afforded the flavone dimers heveaflavone, amentoflavone-7¢¢,4¢¢¢-dimethyl eter, podocarpusflavone-A and amentoflavone. Their structures ...
Chemical profile of the polar extract of Paepalanthus microphyllus (Guill.) Kunth (Eriocaulaceae)
(Divisão de Biblioteca e Documentação do Conjunto das Químicas da Universidade de São Paulo, 2004-09-01)
Do extrato etanólico dos capítulos de Paepalanthus microphyllus, isolou-se um derivado do ácido cafeico (1). Sua estrutura foi caracterizada por métodos espectroscópicos (RMN mono e bi-dimensionais) e por espetrometria de ...
Radicular anatomy of twelve representatives of the Catasetinae subtribe (Orchidaceae: Cymbidieae)
(2012-06-01)
Considering that the root structure of the Brazilian genera belonging to the Catasetinae subtribe is poorly known, we describe the roots of twelve representatives from this subtribe. For anatomical analysis, the roots were ...
Allelopathic effect of the peel of coffee fruit
(2013-07-04)
In coffee (Coffea arabica)-producing areas, particularly in the southeastern region of Brazil, it is part of the agricultural practice to incorporate coffee fruit peels in organic substrates for the production of vegetables, ...
Anti-coagulase-negative Staphylococcus activity of ethanolic extracts of propolis from two Brazilian regions and synergism with antimicrobial drugs by the E-test method
(Universidade Estadual Paulista (Unesp), Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP), 2008-01-01)
Propolis is a natural resinous substance collected by bees from vegetal sources and its therapeutic properties have been investigated. In this work, we evaluated the inhibitory activity of ethanolic extracts of propolis ...
Efeitos biológicos das antocianinas no processo aterosclerótico
(Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias - Departamento de Farmacia, 2011-01-01)
As antocianinas são metabólitos secundários biossintetizados por plantas e perten- centes ao grupo dos flavonóides. Pesquisas indicam que as antocianinas podem aumentar a resistência da LDL à oxidação, comparado ...
Antioxidant activity of citrus fruits cultivated in Brazil
(Int Soc Horticultural Science, 2018-01-01)
Citrus fruits are known for their phytochemical constituents with antioxidant activity. Seven cultivars of citrus fruits were evaluated for ascorbic acid, total phenolics, total flavonoids and total carotenoids (expressed ...