Table 3.

Qualitative results from the analysis of soybean incurred in food matrix using qPCR, LAMP-LFD, and two commercial LFD tests, strictly according to the manufacturers’ instructions. (+: all replicates positive; −: all replicates negative; (+): not all replicates of LAMP/qPCR tested positive, or faint test line in commercial LFD).

Method	Food Matrix	Level of Incurred Soybean per Matrix (mg/kg)
		105	104	103	102	101	100	0 1
lectin qPCR	sausage	+	+	+	+	+	(+)	−
	chocolate	+	+	+	+	+	+	−
	tomato soup	+	+	+	+	+	(+)	−
ORF160b LAMP-LFD	sausage	+	+	+	+	+	(+)	−
	chocolate	+	+	+	+	+	+	−
	tomato soup	+	+	+	+	+	(+)	−
LFD1	sausage	n.d. 2	n.d.	+	+	(+)	−	−
	chocolate	n.d.	n.d.	+	+	+	(+)	−
	tomato soup	n.d.	n.d.	+	+	+	(+)	(+)
LFD2	sausage	n.d.	n.d.	+	+	+	−	−
	chocolate	n.d.	n.d.	+	+	−	−	−
	tomato soup	n.d.	n.d.	+	+	+	−	−

¹ 0: blank matrix; ² n.d.: not determined.