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Capillary Gas Chromatography-Mass Spectromety (CGC-MS) Analysis and Antioxidant Activities of Phenolic and Components of Guarana and Derivatives

Opened Access Capillary Gas Chromatography-Mass Spectromety (CGC-MS) Analysis and Antioxidant Activities of Phenolic and Components of Guarana and Derivatives

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Autor: Kuskoski, Eugenia Marta
Ríos, José J.
Martín Bueno, Julia
Fett, Roseane
Troncoso González, Ana María
García Asuero, Agustín
Departamento: Universidad de Sevilla. Departamento de Química Analítica
Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal
Fecha: 2012
Tipo de documento: Artículo
Resumen: The GC-MS analysis of phenolic compounds present in guarana (Paullinia cupana), an important product of the Amazonian forest consumed in supplements or in soft drinks has been the subject of study. The therapeutic properties and possible protective effects reported for guarana and derivative products could be associated with the antioxidant activity of their phenolics content. The purpose of this study is i) to provide molecular structural information about the composition of guarana in phenolics; ii) to ascertain the effect of solvent type on the extraction procedure; and iii) to determine the antioxidant activity of powders, pericarp, pulp seeds, capsules and bar from Paullinia cupana, as oxygen radical absorbance capacity with fluorescein (ORACFL). Three more phenolic compounds, Quercetin, (+)-Catechin and (-)-Epicatechin have been identified in this report as trimethylsilyl (TMS) derivatives. The amount of total phenolics found in plant materials containing guarana varied from 2...
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Tamaño: 995.7Kb
Formato: PDF

URI: http://hdl.handle.net/11441/68009

DOI: 10.2174/1874065001206010001

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