Abstract

The Assurance Enzyme Immunoassay (EIA) for the Detection of Listeria in Foods and Environmental Surfaces, AOAC Official Method 996.14, has been modified to combine the separate antibody and conjugate addition steps into one. A methods comparison study was conducted to demonstrate the equivalence of this modification to the reference culture methods. Two food matrixes and one environmental surface were analyzed. In total, there were valid results from 145 samples and controls. Results showed that the Assurance EIA for Listeria spp. is equivalent to the reference culture methods for the detection of Listeria.

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