Commodity testing and sub-sample homogeneity system for the Meatspec analyser.
Journal of Near Infrared Spectroscopy
A system based on the use of principal component analysis has been devised for testing the identity and the homogeneity of the sample being analysed by a Meatspec analyser. The system checks that the spectral characteristics of the sample are consistent with the calibration in use and rejects any sub-sample which shows a deviation from the mean of all sub-samples greater than a previously defined specification. The use of principal component distances enabled the design of a system that can accommodate the development of new calibrations for different commodities or different analytes with little additional effort by the calibration developer. Results of the application of the system when analysing for fat, moisture and protein in beef and pork samples are presented for normal beef or pork samples and test samples containing deliberately generated non-homogenous characteristics.
|Title:||Commodity testing and sub-sample homogeneity system for the Meatspec analyser|
|Keywords:||Commodity testing, Meat analysis, Near infrared (NIR) transmission spectroscopy, Principal component analysis (PCA), Sub-sample testing|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Statistical Science
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