Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 417916
Title On the photoacoustic, photothermal and colorimetric quantification of carotenoids and other phytonutrients in some foods: a review
Author(s) Bicanic, D.D.
Source Journal of Molecular Structure 993 (2011)1-3. - ISSN 0022-2860 - p. 9 - 14.
Department(s) Biophysics
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) performance liquid-chromatography - thermal lens detection - trans-beta-carotene - optothermal window - lycopene content - tomato products - vegetable-oils - ultrasensitive determination - spectrometric detection - hplc-tls
Abstract The performance of various analytical methods is compared in terms of their potentiality to quantify the concentration of carotenoids in some foods accurately and rapidly. High performance liquid chromatography (HPLC) and spectrophotometry (SP), two absolute reference techniques, were used in parallel experiments. The emphasis is on the application of the new methods to significantly reduce the long analysis time (due to a laborious and costly extraction) characteristic for both HPLC and spectrophotometry. Among such direct quantification methods are colorimetry and a variety of novel photoacoustic (PA) and photothermal (PT) detection schemes that obviate the extraction step. The outcome of numerous studies shows a number of important advantages provided by these methods. Furthermore, the promising results suggest that the availability of practical, versatile, compact and affordable quality control instruments that offer a low-cost solution to routine analysis of specific carotenoids in some foods is within reach.
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