Results 11 to 20 of about 46,729 (245)
EXTRAÇÃO E DETERMINAÇÃO, POR CLAE, DE BIXINA E NORBIXINA EM COLORÍFICOS
Food Science and Technology, 2001 One of the most important factors for food commercialization is the visual impact due to color. Among the natural colors, annatto preparations are the most consumed colorant by Brazilian industries.
Luciane Tocchini, A. Z. Mercadante
exaly +2 more sources
Quantificação de salicilato de metila em quatro gêneros de polygalaceae, por CLAE-DAD
Quimica Nova, 2012 Polygalaceae is represented in Brazil by ten genera and 191 species, of which the Polygala is the most representative, characterized by the occurrence of methyl salicylate.
Juceni P David, Jorge M David
exaly +2 more sources
Quantificação sérica de vitamina C por CLAE-UV e estudo de estabilidade
Quimica Nova, 2012 Vitamin C, an exogenous antioxidant, is essential to human health. In this study, a method was validated to serum vitamin C quantification by HPLC-UV. Its stability with and without the use of tris [2-carboxy-ethyl] phosphine hydrochloride (TCEP), at -20
Rachel Bulcao, Natália Brucker
exaly +2 more sources
Quimica Nova, 2009 The aim of this work was to develop and validate an analytical methodology for determination of artemisinin used as antimalaric. The method was based on high performace liquid chromatography, using a CN column with mobile phase composed of methanol : H2O
R. M. S. Celeghini +4 more
exaly +2 more sources
Revista Brasileira De Farmacognosia, 2009 This paper reports on a modification of the spectrometric procedures originally described in the French and European Pharmacopoeia for the analysis of Passiflora incarnata L.
Maria L Zeraik
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Quimica Nova, 2009 The use of antioxidants either to prevent or retard food's lipids oxidation was approved after inquires that verified their security within a daily intake limit.
E. Takemoto, J. T. Filho, H. Godoy
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Validação de metodologia analítica para doseamento de soluções de lapachol por CLAE
Quimica Nova, 2004 Lapachol is a naphthoquinone found in several species of the Bignoniaceae family possessing mainly anticancer activity. The present work consists of the development and validation of analytical methodology for lapachol and its preparations.
S. G. Fonseca +3 more
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Revista Brasileira De Farmacognosia, 2007 The use of herbal products and supplements based on isoflavone dry extracts has increased considerably in the last decade, mainly due to beneficial effects to relief of the menopausal symptoms credited to those compounds.
Fernão Castro Braga
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Quimica Nova, 2003 The aim of this paper was to determine the 10-HDA in pure royal jelly and products containing royal jelly, using HPLC methodology. 10-HDA is the natural indicator of the presence of royal jelly in products and also gives the authenticity of pure royal ...
Shinnosuke Koshio +1 more
exaly +2 more sources
Revista Brasileira De Farmacognosia, 2003 Lippia sidoides Cham. (Verbenaceae) is popularly known in Northeast Brazil as "alecrim-pimenta". The goal of the present work is to perform a quantitative analysis of timol, used as a marker in phytomedicine prepared from the leaves of L.
Luzia Kalyne Almeida Moreira Leal +4 more
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