Search Results - "Pavei, Cabral"

Cat's claw oxindole alkaloid isomerization induced by common extraction methods by Kaiser, Samuel, Verza, Simone Gasparin, Moraes, Renata Cougo, Resende, Pedro Ernesto de, Pavei, Cabral, Ortega, George González, Barreto, Fabiano

“…Cat's claw oxindole alkaloids are prone to isomerization in aqueous solution. However, studies on their behavior in extraction processes are scarce. This paper…”
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Extraction optimization of polyphenols, oxindole alkaloids and quinovic acid glycosides from cat's claw bark by Box–Behnken design by Kaiser, Samuel, Verza, Simone Gasparin, Moraes, Renata Cougo, Pittol, Vanessa, Peñaloza, Evelyn Maribel Condori, Pavei, Cabral, Ortega, George González

“…•The concurrent extraction of cat's claw bioactive compounds was optimized by a BBD.•A 2-h extraction with EtOH 50% and 0.5:10 plant:solvent ratio allows the…”
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HPLC-PDA method for quinovic acid glycosides assay in Cat's claw (Uncaria tomentosa) associated with UPLC/Q-TOF–MS analysis by Pavei, Cabral, Kaiser, Samuel, Verza, Simone Gasparin, Borre, Gustavo Luis, Ortega, George Gonzalez

“…► It is a new HPLC-PDA method for the quantification of the quinovic acid fraction in extracts of Cat's claw bark. ► It is a new UPLC/Q-TOF–MS for the…”
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LC-UV Assay Method and UPLC/Q-TOF-MS Characterisation of Saponins from Ilex Paraguariensis A. St. Hil. (Mate) Unripe Fruits by Peixoto, Maria Paula Garofo, Kaiser, Samuel, Verza, Simone Gasparin, de Resende, Pedro Ernesto, Treter, Janine, Pavei, Cabral, Borré, Gustavo Luís, Ortega, George González

“…ABSTRACT Introduction Ilex paraguariensis A. St. Hil. (mate) is known in several South American countries because of the use of its leaves in stimulant herbal…”
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VALIDATION OF A LC METHOD FOR POLYPHENOLS ASSAY IN CAT'S CLAW (UNCARIA TOMENTOSA) by Pavei, Cabral, Kaiser, Samuel, Borré, Gustavo L., Ortega, George G.

“…A reversed-phase LC method was developed and validated for the separation and assay of the main polyphenols in extracts from barks of Uncaria tomentosa. The LC…”
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Study of the Specificity of Cross-Povidone (PVPP) as binding agent in the quantification of polyphenolic compounds by Verza, Simone G., Pavei, Cabral, Ortega, George G.

“…Cross-povidone, or polyvinylpyrrolidone (PVPP) affords an analytical alternative instead of hide-powder and casein as binding agent in the content assay of…”
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COMPARISON OF METHYLXANTHINE, PHENOLICS AND SAPONIN CONTENTS IN LEAVES, BRANCHES AND UNRIPE FRUITS FROM ILEX PARAGUARIENSIS A. ST.-HIL (MATE) by Borré, Gustavo L., Kaiser, Samuel, Pavei, Cabral, da Silva, Francilene A., Bassani, Valquíria L., Ortega, George G.

“…The contents of the methylxanthines, saponins, and phenolics compounds were determined in different parts of Ilex paraguariensis A. St. Hil., in order to…”
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Estudo da relação estrutura-atividade de saponinas hemolíticas e/ou imunoadjuvantes mediante uso de análise multivariada by Kaiser, Samuel, Pavei, Cabral, Ortega, George G.

“…Entre as diversas atividades biológicas relatadas para as saponinas, merecem destaque aquelas relacionadas ao aumento da resposta imune e a ruptura das…”
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Development and Validation of an HPLC Method for the Characterization and Assay of the Saponins from Ilex paraguariensis A. St.-Hil (Mate) Fruits by Pavei, Cabral, Guzatto, Paula, Ros Petrovick, Pedro, Gosmann, Grace, González-Ortega, George

“…Two improved HPLC methods for the characterization and assay of the saponin content in green fruits of Ilex paraguariensis (erva-mate) are described. Both HPLC…”
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Quantification of Sodium Alendronate by LC Anion Exchange Using In Line Complexation by Cornelio, Rafael B., Pavei, Cabral, Verza, Simone G., Silva, Ana Paula C., Ortega, George G., Luzia, Alisson B., Fialho, Sílvia L., Mayorga, Paulo

“…A fast and sensitive high performance chromatographic method for quantification of sodium alendronate was developed and afterward implemented for tablet…”
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Validation of an LC Method for Polyphenol Assay in Extractive Solutions from Ilex paraguariensis (Mate) by Amaral da Silva, Francilene, Pavei, Cabral, Ortega, George González, Lima, Eliana Martins, Almeida Diniz, Danielle Guimarães, Fonseca Moreira, José Cláudio, Bassani, Valquiria Linck

“…A liquid chromatography (LC) method was developed and validated for identification and quantification of polyphenols in aqueous extractive solution from Ilex…”
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The effect of aqueous extract of gross and commercial yerba mate ( Ilex paraguariensis) on intra-abdominal and epididymal fat and glucose levels in male Wistar rats by Silva, Raquel D'Agostini, Bueno, Audrin Loss Scopel, Gallon, Carin Weirich, Gomes, Luana Ferreira, Kaiser, Samuel, Pavei, Cabral, Ortega, George González, Kucharski, Luiz Carlos, Jahn, Matheus Parmegiani

“…This study analyzed the plasma lipid profile, glucose levels and fat deposits in male rats treated with aqueous extract of gross yerba mate, commercial yerba…”
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