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| Research article summary (published 4 Apr 2007): |
Static-dynamic superheated liquid extraction of hydroxytyrosol and other biophenols from alperujo (a semisolid residue of the olive oil industry).
Full Abstract
Hydroxytyrosol and other olive biophenols (OBPs) such as tyrosol, verbascoside, apigenin-7-glucoside, and alpha-taxifolin have been extracted from alperujo by using static-dynamic superheated liquids. Multivariate methodology has been used to carry out a detailed optimization of the extraction. Under the optimal working conditions no further extraction of the target analytes was achieved after 27 min (up to 2800 and 1500 mg/kg of hydroxytyrosol and tyrosol, respectively), so complete removal of them within this interval was assumed. The extract was injected into a chromatograph-photodiode array detector assembly for individual separation-quantification. The efficacy of ethanol/water mixtures to extract OBPs from alperujo has been demonstrated and compared with that of a conventional stirring-based method. These less toxic extractant mixtures are of interest with a view to future human uses of OBPs.
Author information
Author/s: Japón-Luján, Rafael (R); Luque de Castro, María Dolores (MD);
Affiliation: Department of Analytical Chemistry, University of Córdoba, Campus of Rabanales, Annex C-3, 14071 Córdoba, Spain.
Journal and publication information
Publication Type: Journal Article
Journal: Journal of agricultural and food chemistry (J Agric Food Chem), published in United States. (Language: eng)
Reference: 2007-May; vol 55 (issue 9) : pp 3629-34
Dates: Created 2007/04/25; Completed 2007/07/24; Revised 2008/11/21;
PMID: 17411068, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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