Table 3.
Near-infrared spectroscopy calibration parameters from the prediction set on the total sum (µg/kg DM) and count (n) of Mycotoxin class 1.
| TOTAL SUM of Mycotoxins | ||||||
|---|---|---|---|---|---|---|
| Cut off 4000 µg/kg DM | Cut off 7000 µg/kg DM | Cut off 10,000 µg/kg DM | ||||
| Class1 | Class2 | Class1 | Class2 | Class1 | Class2 | |
| Class1 | 25.7 ± 2.7 | 6.3 ± 2.7 | 35.6 ± 2.4 | 5.4 ± 2.4 | 42.9 ± 2.1 | 3.1 ± 2.1 |
| Class2 | 4.6 ± 2.3 | 25.5 ± 2.3 | 1.3 ± 1.5 | 35.8 ± 1.5 | 0.4 ± 0.9 | 40.7 ± 0.9 |
| Accuracy | 82.2 ± 5.9% | 91.5 ± 3.5% | 96.0 ± 2.7% | |||
| Sensitivity | 80.2 ± 8.5% | 86.9 ± 5.9% | 93.2 ± 4.6% | |||
| Specificity | 81.3 ± 8.0% | 96.6 ± 4.0% | 99.2 ± 2.2% | |||
| CI 2 | (70.4 ± 6.9%), (90.6 ± 4.3%) | (83.1 ± 4.4%), (96.5 ± 2.2%) | (89.7 ± 3.7%), (98.8 ± 1.4%) | |||
| p value | <0.05 | <0.05 | <0.05 | |||
| TOTAL COUNT of mycotoxins | ||||||
| Cut off n = 28 | Cut off n = 31 | Cut off n = 34 | ||||
| Class1 | Class2 | Class1 | Class2 | Class1 | Class2 | |
| Class1 | 30.9 ± 2.4 | 5.1 ± 2.4 | 38.9 ± 1.7 | 4.2 ± 1.7 | 46.3 ±1.7 | 2.7 ±1.7 |
| Class2 | 3.2 ± 2.2 | 28.9 ± 2.2 | 0.6 ± 1.1 | 38.4 ± 1.1 | 0.03 ± 0.3 | 44.0 ± 0.3 |
| Accuracy | 87.8 ± 4.4% | 94.2 ± 2.6% | 97.1 ± 1.8% | |||
| Sensitivity | 85.7 ± 6.7% | 90.4 ± 3.9% | 94.6 ± 3.5% | |||
| Specificity | 90.2 ± 6.7% | 98.5 ± 2.8% | 99.9 ± 0.7% | |||
| CI 2 | (77.8 ± 5.3%), (94.3 ± 3.0%) | (86.9 ± 3.4%), (98.1 ± 1.5%) | (91.5 ± 2.7%), (99.3 ± 0.7%) | |||
| p value | <0.05 | <0.05 | <0.05 | |||
1 Class 1, class of samples lower than cut-off limits; Class 2, class of samples higher than cut-off limits 2 CI, Confidence Interval 95%.