dc.creator | Kuskoski, Eugenia Marta | es |
dc.creator | Ríos, José J. | es |
dc.creator | Martín Bueno, Julia | es |
dc.creator | Fett, Roseane | es |
dc.creator | Troncoso González, Ana María | es |
dc.creator | García Asuero, Agustín | es |
dc.date.accessioned | 2017-12-26T14:33:57Z | |
dc.date.available | 2017-12-26T14:33:57Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Kuskoski, E.M., Ríos, J.J., Martín Bueno, J., Fett, R., Troncoso González, A.M. y García Asuero, A. (2012). Capillary Gas Chromatography-Mass Spectromety (CGC-MS) Analysis and Antioxidant Activities of Phenolic and Components of Guarana and Derivatives. Open Analytical Chemistry Journal, 6 | |
dc.identifier.issn | 1874-0650 (electrónico) | es |
dc.identifier.uri | http://hdl.handle.net/11441/68009 | |
dc.description.abstract | 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 25.10 to 124.99 mg of gallic acid/g dry sample whereas that the antioxidant activity ranged from 441.5 to 1468.3 μmol TEAC/g dry sample. A high correlation was found between the estimated phenolic contents and the TEAC values (r = 0.937, P < 0.01) for all the types of guarana samples tested. | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Bentham Open | es |
dc.relation.ispartof | Open Analytical Chemistry Journal, 6 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Guarana (Paullinia cupana) | es |
dc.subject | Phenolic compounds | es |
dc.subject | Capillary gas chromatography-mass spectrometry | es |
dc.subject | Antioxidant activity | es |
dc.title | Capillary Gas Chromatography-Mass Spectromety (CGC-MS) Analysis and Antioxidant Activities of Phenolic and Components of Guarana and Derivatives | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Analítica | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Nutrición y Bromatología, Toxicología y Medicina Legal | es |
dc.relation.publisherversion | http://dx.doi.org/10.2174/1874065001206010001 | es |
dc.identifier.doi | 10.2174/1874065001206010001 | es |
idus.format.extent | 8 p. | es |
dc.journaltitle | Open Analytical Chemistry Journal | es |
dc.publication.volumen | 6 | es |