Raman spectroscopy in determination of horse meat content in the mixture with other meats

A new method based on FT-Raman measurements that allows to determine the content of horse meat in its mixture with beef has been proposed. In the analysis of the Raman spectra of the meat mixtures, the integral intensity ratios of the 937/1003, 879/1003, 856/1003, 829/1003, and 480/1003 cm−1 pairs of bands have been determined the intensities of which were related to the reference intensity of the band at 1003 cm−1. The reasonable results that show good fitting between the spectroscopic parameters and chemical content of the studied samples have been obtained. The analytical equations between these parameters have been proposed.