Table 1. PLSR results for predicting adulteration of beef with chicken meat (uncooked samples)

Parameter Fixed excitation (nm) Emission wavelength range (nm) r2C RMSEC (%) r2CV RMSEP (%)
Level of adulteration (%) 290 305–450 0.89 3.49 0.86 4.82
322 340–550 0.92 2.31 0.88 1.99
340 360–600 0.97 0.78 0.95 0.56
PLSR, partial least squares regression; r2C, coefficient of determination for calibration; r2CV, coefficient of determination for prediction; RMSEC, root mean square error of calibration; RSMEP, root mean square error of prediction.