Table 2.

Detection of processed soy products analyzed at 1:10⁴ dilution using loop-mediated isothermal amplification (LAMP)-lateral flow dipstick (LFD), quantitative real-time PCR (qPCR) and two commercial LFD tests. (+: all replicates positive; −: all replicates negative; (+): LAMP/qPCR: not all replicates positive or negative).

Sample No.	Soy Product	Protein Content (%)	ORF160b LAMP-LFD	lectin qPCR	LFD1	LFD2
P-1	TVP 1	56.7	+	+	+	−
P-2	TVP 1	67.4	(+)	(+)	+	−
P-3	soy flakes	~50 2	+	+	+	−
P-4	soy flakes	~50 2	+	+	+	+
P-5	soy protein concentrate	71.8	+	+	+	+
P-6	defatted soy flour	~50 2	+	+	+	+
P-7	soy semolina	~50 2	+	+	+	+
P-8	tofu	13.5	+	(+)	+	−
18	Yellow soybeans Schoenenberger® Hensel®	38	+	+	+	+

¹ TVP: texturized vegetable protein; ² actual protein content unknown, protein content assumed based on literature (CODEX STAN 175, 1989); samples P-1 to P-7 from ifp, P-8 from Life Food GmbH.