Application of FT NIR spectroscopy in the determination of basic chemical composition of pork and beef

J. Mlček, K. Šustová and J. Simeonovová
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J. Mlček: Department of Food Technology, Mendel University of Agriculture and Forestry, Brno, Czech Republic
K. Šustová: Department of Food Technology, Mendel University of Agriculture and Forestry, Brno, Czech Republic
J. Simeonovová: Department of Food Technology, Mendel University of Agriculture and Forestry, Brno, Czech Republic

Czech Journal of Animal Science, 2006, vol. 51, issue 8, 361-368

Abstract: The objective of this paper was to determine basic components of pork and beef (fat, protein, water content) using FT NIR spectroscopy. The samples were analysed on an FT NIR Nicolet Antaris device in a reflec-tance regimen. Reference results from classical analyses were used for the calibration of the device. Calibration models were created using PLS algorithm (method of partial least squares) and verified by cross-validation. High correlation coefficients (R) of calibration were calculated (fat 0.998; protein 0.976; water 0.994), and subsequently of validation as well (fat 0.997; protein 0.970; water 0.993) and very low standard deviations of the calibration and validation (SEC, SEP). No statistically significant differences between the reference and predicted values of determination were detected in Z-test. According to the published results, the NIRS method has a high potential to replace an expensive and time demanding chemical analysis of meat composition.

Keywords: pork and beef; NIR spectroscopy; fat; protein; water; discriminant analysis (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjs:v:51:y:2006:i:8:id:3952-cjas

DOI: 10.17221/3952-CJAS

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