ABRAXIS® Patulin Strip Test 20-Test

The ABRAXIS® Patulin Strip Test is a rapid immunochromatographic test designed for use in the qualitative screening of Patulin in food samples such as applesauce, apple juice/cider, pear puree, and pear juice.  For other matrices of interest, please contact Gold Standard Diagnostics. The test is based on the recognition of Patulin by specific antibodies. The sample to be tested is derivatized and then added to the conical test vial containing specific antibodies for Patulin labeled with colloidal gold. The Patulin conjugate on the membrane strip competes for antibody binding sites with the Patulin that may be present in the sample. A control line, produced by a different antibody/antigen reaction, is also present on the membrane strip. The control line is not influenced by the presence or absence of Patulin in the sample and, therefore, should be present in all reactions. In the absence of Patulin in the sample, the colloidal gold-labeled antibody complex moves with the sample by capillary action to react with the immobilized Patulin conjugate. An antibody-antigen reaction forms a visible line in the ‘test’ area. The formation of two visible lines of similar intensity indicates a negative test result, meaning the test did not detect Patulin at or below the established cut-off point for the test. If Patulin is present in the sample, it competes with the immobilized Patulin conjugate in the test area for the antibody binding sites on the colloidal gold labeled complex. If a sufficient amount of Patulin is present, it will fill all of the available binding sites, thus preventing attachment of the labeled antibody to the Patulin conjugate, therefore preventing the development of a colored line. If a colored line is not visible in the test line region, or if the test line is lighter than the control line, Patulin is present at a detectable level. If necessary, positive samples can be confirmed by ELISA, HPLC, or other conventional methods.

Semi-quantitative results can be obtained by comparing the sample test strip appearance to the appearance of test strips from solutions of known Patulin concentrations (control solutions). An ABRAXIS® Patulin Strip Control Solution is available through Gold Standard Diagnostics.

PN-500135 ABRAXIS® Patulin Dipstick, 20-Test

PN 500137 ABRAXIS® Patulin Dipstick, 20-Test, Starter Bundle For Juice (Includes Kit, Block Heater, Modular Vial Block, Pocket Scale, Timer & Vortex)

PN 500138 ABRAXIS® Patulin Dipstick, 20-Test, Starter Bundle For Sauce (Includes Kit, Block Heater, Modular Vial Block, Pocket Scale, Timer & Mini-centrifuge)

Format-Lateral Flow Test Strip