УДК: 535.34

Technique for determining whether there are food colorings in powdered children’s food, using terahertz spectroscopy

Borimova, A.A., Gerasimova, O.V., Tsypkin, A.N.

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Боримова А.А., Герасимова О.В., Цыпкин А.Н. Методика определения наличия пищевых красителей в порошковом детском питании с использованием терагерцовой спектроскопии // Оптический журнал. 2015. Т. 82. № 11. С. 50–55.

Borimova A.A., Gerasimova O.V., Tsypkin A.N. Technique for determining whether there are food colorings in powdered children’s food, using terahertz spectroscopy [in Russian] // Opticheskii Zhurnal. 2015. V. 82. № 11. P. 50–55.

For citation (Journal of Optical Technology):

A. A. Borimova, O. V. Gerasimova, and A. N. Tsypkin, "Technique for determining whether there are food colorings in powdered children’s food, using terahertz spectroscopy," Journal of Optical Technology. 82(11), 755-759 (2015). https://doi.org/10.1364/JOT.82.000755

Abstract:

A technique is presented for using teraherz spectroscopy to determine the presence of food colorings in powdered dry children’s milk, based on the absorption spectra of pure substances and mixtures with different percentages of dyes in them. The spectra of food colorings E129, E155, E124 and dry children’s milk are investigated both separately and in mixtures. It is established that, when colorings are added to dry milk, an increase of the absorption coefficient was observed at frequencies that correspond to broad absorption lines of the dyes in the 0.6–1.3-THz range. When the mass fraction of a coloring in dry milk increases, the absorption of their mixture increases.

Keywords:

teraherz radiation, teraherz spectroscopy, absorption spectrum, food colorings

Acknowledgements:

This work was carried out with the state financial support of the leading universities of the Russian Federation (Subsidy 074-U01). The authors express gratitude for help in this work to Doctor of Physicomathematical Sciences Professor Viktor Georgievich Bespalov.

OCIS codes: 300.0300; 300.6495

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