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 496646
Title Application of Photothermal Methods for Quantification of Carotenoids in Apricot Jams
Author(s) Dóka, O.; Bicanic, D.; Stéger-Máté, M.; Végvári, Gy
Source International Journal of Thermophysics 36 (2015)9. - ISSN 0195-928X - p. 2370 - 2379.
Department(s) Biophysics
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Apricot jam - Optothermal window method - Photoacoustic spectroscopy - Spectrophotometry - β-Carotene

Carotenes, found in a diversity of fruit-containing foods, are important sources of antioxidants; a good example is apricot jam. In the study described in this paper, both the total carotenoid content (TCC) as well as the content of $$\\upbeta $$β-carotene in six different apricot jams were quantified using traditional (UV–VIS) spectrophotometry (SP), high-performance liquid chromatography (HPLC), laser photoacoustic spectroscopy (LPAS), and the optothermal window (OW) method. Unlike SP and HPLC, LPAS and the OW methods require the minimum of sample preparation and only a one time calibration step which enables practically direct quantification of the TCC. Results were verified versus data obtained with SP as the reference technique. It was shown that LPAS and the OW method (at 473 nm) provide satisfactory results with $$R^{2}=0.9884$$R2=0.9884 and 0.9766 for LPAS and OW, respectively.

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