Correlation of trans-Lycopene Measurements by the HPLC Method with the Optothermal and Photoacoustic Signals and the Color Readings of Fresh Tomato Homogenates

The trans-lycopene content of fresh tomato homogenates was assessed by means of the laser photoacoustic spectroscopy, the laser optothermal window, micro-Raman spectroscopy, and colorimetry; none of these methods require the extraction from the product matrix prior to the analysis. The wet chemistry...

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Detalles Bibliográficos
Autores principales: Bicanic, Dane, Dimitrovski, Darko, Luterotti, Svjetlana, Marković, Ksenija, van Twisk, Charlotte, Buijnsters, Josephus G., Dóka, Otto
Formato: Texto
Lenguaje:English
Publicado: Springer US 2009
Materias:
Original Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2854609/
https://www.ncbi.nlm.nih.gov/pubmed/20401182
http://dx.doi.org/10.1007/s11483-009-9140-9
Descripción
Sumario:The trans-lycopene content of fresh tomato homogenates was assessed by means of the laser photoacoustic spectroscopy, the laser optothermal window, micro-Raman spectroscopy, and colorimetry; none of these methods require the extraction from the product matrix prior to the analysis. The wet chemistry method (high-performance liquid chromatography) was used as the absolute quantitative method. Analytical figures of merit for all methods were compared statistically; best linear correlation was achieved for the chromaticity index a* and chroma C*.

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