Table 7.

Near-infrared spectroscopy calibration parameters from the prediction set on the sum (µg/kg DM) and count (n) of Penicillium mycotoxin class ¹.

SUM of Penicillium Toxins
	Cut off 150 µg/kg DM		Cut off 250 µg/kg DM		Cut off 350 µg/kg DM
	Class1	Class2	Class1	Class2	Class1	Class2
Class1	24.9 ± 2.4	7.1 ± 2.4	36.8 ± 2.1	4.2 ± 2.1	42.8 ± 2.3	4.3 ± 2.3
Class2	4.5 ± 2.7	24.5 ± 2.7	1.3 ± 1.8	35.7 ± 1.8	0.1 ± 0.7	41.9 ± 0.7
Accuracy	81.0 ± 5.8%		92.9 ± 3.4%		95.1 ± 2.8%
Sensitivity	77.9 ± 7.4%		89.8 ± 5.2%		91.0 ± 4.9%
Specificity	84.4 ± 9.2%		96.4 ± 4.8%		99.7 ± 1.6%
CI 2	(69.1 ± 6.6%), (89.7 ± 4.4%)		(85.0 ± 4.4%), (97.3 ± 2.0%)		(88.5 ± 3.8%), (98.4 ± 1.5%)
p value	<0.05		<0.05		<0.05
COUNT of Penicillium toxins
	Cut off n = 3		Cut off n = 4		Cut off n = 5
	Class1	Class2	Class1	Class2	Class1	Class2
Class1	24.0 ± 2.6	6.0 ± 2.6	42.5 ± 2.4	4.5 ± 2.4	56.4 ± 1.5	1.6 ± 1.5
Class2	5.2 ± 2.1	21.8 ± 2.1	0.9 ± 1.4	41.4 ± 1.4	0	52.0 ± 0
Accuracy	80.2 ± 5.3%		94.0 ± 3.1%		98.6 ± 1.3%
Sensitivity	79.9 ± 8.6%		90.5 ± 5.0%		97.3 ± 2.5%
Specificity	80.6 ±7.8%		97.9 ± 3.3%		100.00%
CI 2	(67.7 ± 5.9%), (89.5 ± 4.0%)		(87.0 ± 4.0%), (97.7 ± 1.8%)		(94.3 ± 2.1%), (99.7 ± 0.5%)
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%.