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Title: Correlation of trans-Lycopene Measurements by the HPLC Method with the Optothermal and Photoacoustic Signals and the Color Readings of Fresh Tomato Homogenates
Authors: Bicanic, Dane
Dimitrovski, Darko 
Luterotti, Svjetlana
Marković, Ksenija
van Twisk, Charlotte
Buijnsters, Josephus G
Dóka, Otto
Issue Date: Mar-2010
Publisher: Springer Science and Business Media LLC
Journal: Food Biophysics
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*.
ISSN: 1557-1858
DOI: 10.1007/s11483-009-9140-9
Appears in Collections:Faculty of Technology and Metallurgy: Journal Articles

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