Raman spectroscopic differentiation of beef and horse meat using a 671 nm microsystem diode laser
Applied Physics B: Lasers and Optics, ISSN: 0946-2171, Vol: 113, Issue: 2, Page: 159-163
2013
- 15Citations
- 14Captures
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Article Description
A non-invasive Raman spectroscopic approach for meat species identification and quality detection was successfully demonstrated for the two closely related species beef and horse. Fresh beef and horse muscles were cut and ice-stored at 5 C, and time-dependent Raman measurements were performed daily up to 12 days postmortem. Applying a 671 nm microsystem diode laser and a laser power of 50 mW, spectra were recorded with integration times of 1-4 s. A pronounced offset of the Raman spectra was observed between horse and beef, with high fluorescence background for horse compared to beef for all days of storage. Principal components analysis was applied for data evaluation revealing a clear distinction between beef and horse meat which can be attributed to differences in the myoglobin content of both species. Furthermore, separations according to aging and spoilage for the two species could be identified simultaneously. Therefore, Raman spectroscopy might be an efficient test method for meat species identification in combination with spoilage detection. © 2013 Springer-Verlag Berlin Heidelberg.
Bibliographic Details
Springer Science and Business Media LLC
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