Abstract
Four lots of the SET-RPLA kit (Denka Seiken Co. Ltd., Tokyo), a commercial reverse passive latex agglutination test kit for the detection of staphylococcal enterotoxins A, B, C, and D in foods, have been evaluated for their efficacy. The kits showed high specificity and sensitivity with a detection limit of 0.75 ng enterotoxin/g of food. The test is simple, is completed within 24 h, and does not require complicated extraction or concentration procedures nor expensive equipment. In addition, the assay is semiquantitative. However, as in any other immunological system, routine verification of the specificity of the latex reagents against standard enterotoxins and toxin-free food extracts is necessary.
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