Table 2.
Results of the classification of the flours according to the percentage of lentil flour present, based on the mathematical pre-treatments applied to the NIR spectra that provided the best results.
| Global Composition Results |
Validation Results by Category | Global Lentil Variety Results |
Validation Results by Category | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Correctly Classified (%) | Sensitivity | Correctly Classified (%) | Sensitivity | |||||||||
| Spectral Pre-Treatment |
Calibration (n = 120) | Validation (n = 33) |
100 | 75 | 50 | 25 | Calibration (n = 120) | Validation (n = 33) |
Castellana | Guareña | Pardina | |
| None | 0-0-1-1 | 98.06 | 95.56 | 0.88 | 1.00 | 1.00 | 1.00 | 77.50 | 70.00 | 0.80 | 0.80 | 0.50 |
| 1-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 82.50 | 76.67 | 0.70 | 0.60 | 1.00 | |
| 2-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 94.17 | 93.33 | 1.00 | 0.80 | 1.00 | |
| 2-10-10-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 83.33 | 76.67 | 0.70 | 0.60 | 1.00 | |
| 2-8-6-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 84.17 | 80.00 | 0.70 | 0.70 | 1.00 | |
| Detrend | 0-0-1-1 | 98.88 | 95.55 | 0.88 | 1.00 | 1.00 | 1.00 | 77.50 | 73.33 | 0.80 | 0.50 | 0.90 |
| 1-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 84.17 | 76.67 | 0.70 | 0.60 | 1.00 | |
| 2-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 94.17 | 93.33 | 1.00 | 0.80 | 1.00 | |
| 2-10-10-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 83.33 | 76.67 | 0.70 | 0.60 | 1.00 | |
| 2-8-6-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 84.17 | 80.00 | 0.70 | 0.70 | 1.00 | |
| SNV | 0-0-1-1 | 96.94 | 93.33 | 0.83 | 1.00 | 1.00 | 1.00 | 66.67 | 63.33 | 0.60 | 0.40 | 0.90 |
| 1-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 88.33 | 86.67 | 0.70 | 0.90 | 1.00 | |
| 2-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 100.00 | 96.67 | 1.00 | 0.90 | 1.00 | |
| 2-10-10-1 | 100.00 | 98.88 | 1.00 | 0.94 | 1.00 | 1.00 | 88.33 | 73.33 | 0.80 | 0.40 | 1.00 | |
| 2-8-6-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 90.00 | 83.33 | 0.80 | 0.90 | 0.80 | |
| SNV-Detrend | 0-0-1-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 87.5 | 80.00 | 0.80 | 0.60 | 1.00 |
| 1-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 93.33 | 80.00 | 0.70 | 0.70 | 1.00 | |
| 2-4-4-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 100.00 | 96.67 | 1.00 | 0.90 | 1.00 | |
| 2-10-10-1 | 100.00 | 98.88 | 1.00 | 0.94 | 1.00 | 1.00 | 88.33 | 73.33 | 0.80 | 0.40 | 1.00 | |
| 2-8-6-1 | 100.00 | 100.00 | 1.00 | 1.00 | 1.00 | 1.00 | 90.00 | 83.33 | 0.80 | 0.90 | 0.80 | |
100: flours with a percentage of 100% lentil flour; 75: flours with 75% lentil flour/25% wheat flour; 50: flours with 50% lentil flour/50% wheat flour; 25: flours with 25% lentil flour/75% wheat flour.