title: Correlation of trans-Lycopene Measurements by the HPLC Method with the Optothermal and Photoacoustic Signals and the Color Readings of Fresh Tomato Homogenates.
abstract: 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*.
authors.forename: Dane
authors.initials: D
authors.lastname: Bicanic
authors.forename: Darko
authors.initials: D
authors.lastname: Dimitrovski
authors.forename: Svjetlana
authors.initials: S
authors.lastname: Luterotti
authors.forename: Ksenija
authors.initials: K
authors.lastname: Marković
authors.forename: Charlotte
authors.initials: C
authors.lastname: van Twisk
authors.forename: Josephus G
authors.initials: JG
authors.lastname: Buijnsters
authors.forename: Otto
authors.initials: O
authors.lastname: Dóka
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