The 3M™ Soy Protein Rapid Kit is intended for screening for the presence of soy proteins in clean-in-place (CIP) final rinse water, environmental swab samples, food ingredients and processed food products.
The 3M Soy Protein Rapid Kit utilizes a lateral flow device (LFD) that is an immunochromatographic test method utilizing antibodies which are specific for the detection of soy proteins. Positive results are visualized by the presence of three lines: a control line, a hook line and a test line, when the soy protein is present in the range of concentrations from a lower level of 2 ppm and a higher level of approximately 2 mg/mL of soy protein in saline solution (0.9% sodium chloride). These limits may vary depending on the matrix tested. Samples containing more than 1% soy may result in an invalid test which will result in the absence of the hook line and/or test line.