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Quantification of lycopene in tomato products: comparing the performances of a newly proposed direct photothermal method and high-performance liquid chromatography

Authors

  • Dane Bicanic,

    Corresponding author
    1. Laser Laboratory for Photothermal Science, Biophysics Division, Department of Agrotechnology and Food Sciences, Wageningen University, Dreijenlaan 3, Transitorium, NL-6703 HA Wageningen, The Netherlands
    • Laser Laboratory for Photothermal Science, Biophysics Division, Department of Agrotechnology and Food Sciences, Wageningen University, Dreijenlaan 3, Transitorium, NL-6703 Wageningen, The Netherlands
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  • Vincenzo Fogliano,

    1. Dipartimento di Scienza degli Alimenti, Universita di Napoli ‘Federico II’, Parco Gussone Edificio 84, I-80055 Portici, Italy
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  • Svjetlana Luterotti,

    1. Faculty of Pharmacy and Biochemistry, University of Zagreb, Ante Kovačića 1, HR-10000 Zagreb, Croatia
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  • Jan Swarts,

    1. Laser Laboratory for Photothermal Science, Biophysics Division, Department of Agrotechnology and Food Sciences, Wageningen University, Dreijenlaan 3, Transitorium, NL-6703 HA Wageningen, The Netherlands
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  • Giovanni Piani,

    1. European Laboratory for Non-linear Spectroscopy LENS, University of Florence, Via Nello Carrara 1, Sesto Fiorentino, Italy
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  • Giulia Graziani

    1. Dipartimento di Scienza degli Alimenti, Universita di Napoli ‘Federico II’, Parco Gussone Edificio 84, I-80055 Portici, Italy
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Abstract

A new photothermal method suitable for direct, accurate and highly reproducible quantitative measurements of lycopene in tomato products has been introduced. The intrinsic precision of the method is typically better than 0.2%; the repeatability of determination is comparable to that of high-performance liquid chromatography, with 0.86% least overall error. Copyright © 2005 Society of Chemical Industry

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