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	Provedor de dados Ciênc. Tecnol. Aliment. (2) Autor GODOY,Helena Teixeira (2) MEINHART,Adriana Dillenburg (2) ALVES,Alane Cangani (1) CALDEIRÃO,Lucas (1) DAMIN,Fernanda Mateus (1) TEIXEIRA FILHO,José (1) TEIXEIRA-FILHO,José (1) Mais... Palavra-chave Added ingredients (1) Bioactive (1) Capillary electrophoresis (1) HPLC (1) Multivariate optimization (1) Phenolic compounds (1) Quantification (1) Tea (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2020 (1) 2019 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Development of a method for simultaneous analysis of caffeine and taurine in energy drinks by micellar electrokinetic chromatography with diode-array detector Ciênc. Tecnol. Aliment. ALVES,Alane Cangani; MEINHART,Adriana Dillenburg; TEIXEIRA FILHO,José; GODOY,Helena Teixeira. Abstract The objective of this study was to develop, optimize and validate a fast and reliable method for the simultaneous determination of caffeine and taurine contents by micellar electrokinetic chromatography with diode array detector, using direct and indirect detection concomitantly. Multivariate statistical techniques were used as a central composite design and the simultaneous optimization method of responses of Derringer and Suich were used for optimization. The method was applied in the analysis of 73 samples of energy drinks commercialized in Brazil. The optimized method employed a capillary tube with an extended bulb of 50 µm i.d. x 72 cm total length, an electrolyte containing 16.20 mmol.L-1 of benzoic acid and 39.90 mmol.L-1 of SDS, a pH value... Tipo: Info:eu-repo/semantics/article Palavras-chave: Multivariate optimization; Added ingredients; Capillary electrophoresis. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600673 Rutin in herbs and infusions: screening of new sources and consumption estimation Ciênc. Tecnol. Aliment. MEINHART,Adriana Dillenburg; DAMIN,Fernanda Mateus; CALDEIRÃO,Lucas; TEIXEIRA-FILHO,José; GODOY,Helena Teixeira. Abstract Rutin has shown promising results in reducing various human diseases. However, many plants consumed in Brazil do not have their rutin content reported in the literature yet. More than eighty plants were analyzed using aqueous (popularly known as tea) and ethanolic extraction (employed in commercial rutin purification) by liquid chromatography. Rutin was found in 47 samples when ethanol extraction was used. Echinodorus grandiflorus had the highest content (14,878.7 mg 1000 g-1), followed by Sambucus nigra, Drimys winteri and Taraxacum officinale. In aqueous infusion, Echinodorus grandiflorus, Sambucus nigra, Drimys winteri and Ruta graveolens presented the highest levels of rutin, ranging from 15.5 to 29.7 mg of rutin in 300 mL of infusion from 2 g... Tipo: Info:eu-repo/semantics/article Palavras-chave: Tea; HPLC; Phenolic compounds; Quantification; Bioactive. Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612020005005201 Registros recuperados: 2 Primeira ... 1 ... Última

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