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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.18/74

Título: Critical assessment of three high performance liquid chromatography analytical methods for food carotenoid quantification
Autor: Dias, M. Graça
Oliveira, Luísa
Camões, M. Filomena G.F.C.
Nunes, Baltazar
Versloot, Pieter
Hulshof, Paul J.M.
Palavras-chave: Carotenoids
Food
HPLC
Method development
Solvent and time reduction
Composição dos Alimentos
Estados de Saúde e de Doença
Issue Date: 21-May-2010
Editora: Elsevier
Citação: J Chromatogr A. 2010 May 21;1217(21):3494-502. Epub 2010 Mar 19
Resumo: Three sets of extraction/saponification/HPLC conditions for food carotenoid quantification were technically and economically compared. Samples were analysed for carotenoids α-carotene, β-carotene, β-cryptoxanthin, lutein, lycopene, and zeaxanthin. All methods demonstrated good performance in the analysis of a composite food standard reference material for the analytes they are applicable to. Methods using two serial connected C18 columns and a mobile phase based on acetonitrile, achieved a better carotenoid separation than the method using a mobile phase based on methanol and one C18-column. Carotenoids from leafy green vegetable matrices appeared to be better extracted with a mixture of methanol and tetrahydrofuran than with tetrahydrofuran alone. Costs of carotenoid determination in foods were lower for the method with mobile phase based on methanol. However for some food matrices and in the case of E–Z isomer separations, this was not technically satisfactory. Food extraction with methanol and tetrahydrofuran with direct evaporation of these solvents, and saponification (when needed) using pyrogallol as antioxidant, combined with a HPLC system using a slight gradient mobile phase based on acetonitrile and a stationary phase composed by two serial connected C18 columns was the most technically and economically favourable method.
Arbitragem científica: yes
URI: http://hdl.handle.net/10400.18/74
ISSN: 0021-9673
Versão do Editor: http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235248%232010%23987829978%231931689%23FLA%23&_cdi=5248&_pubType=J&_auth=y&_acct=C000057403&_version=1&_urlVersion=0&_userid=2460193&md5=19adee7e85d72de6e381f9b3aed44869
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DAN - Artigos em revistas internacionais

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