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.
- carotenoid content
Bicanic, D. D., Fogliano, V., Luterotti, S., Swarts, J. J., Piani, G., & Graziani, G. (2005). Quantification of lycopene in tomato products: comparing the performances of a newly proposed direct photothermal method and high-performance liquid chromatography. Journal of the Science of Food and Agriculture, 85(7), 1149-1153. https://doi.org/10.1002/jsfa.2080