Artículos de revistas
Validation of a method for simultaneous quantification of total carotenes and tocols in vegetable oils by HPLC
Registro en:
Food Chemistry. Elsevier Sci Ltd, v. 129, n. 4, n. 1874, n. 1881, 2011.
0308-8146
WOS:000294979600077
10.1016/j.foodchem.2011.05.137
Autor
Silva, SM
Rocco, SA
Sampaio, KA
Taham, T
da Silva, LHM
Ceriani, R
Meirelles, AJA
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A normal-phase HPLC method for analysis of carotenes, tocopherols and tocotrienols has been developed and validated. In this work we presented a modification to the official AOCS method for analysis of tocols which allowed simultaneous quantification of the three groups of compounds, including carotenes. Analytes were separated using a gradient mobile phase (hexane and isopropanol) and with a gradient flow rate (1-2 mL min(-1)). The column effluent was monitored by Photo Diode Array detector (PDA) set at 292 nm (tocols) and 455 nm (beta-carotene) and by fluorescence detector set at an excitation wavelength of 290 and 330 nm emission. Inter- and intra-run accuracies and precision of the analytical method were better than +/- 15%. The lower limit of quantification was 5.0 mg L(-1) for the tocols and 0.1 mg L(-1) for carotenes. The method has been applied for the quantification of these compounds in Amazon oils. (C) 2011 Elsevier Ltd. All rights reserved. 129 4 1874 1881 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) FAPESP [2008/56258-8, 2010/16634-0] CNPq [306250/2007-1, 301999/2010-4, 140283/2009-9] CAPES [0099-11-2]