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Listeria monocytogenes (ELFA) Test

  • For 25g test
    55 per analysisFor 125g (Composite) test
    60 per analysis
    • |
  • 7-9 Business Days
    • |
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Listeria monocytogenes (ELFA) Test
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Technical data sheet

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Method description

VIDAS Listeria monocytogenes (LMX) is an automated qualitative test for use on the VIDAS for the detection of Listeria monocytogenes in human food products and environmental samples using the ELFA technique (Enzyme Linked Fluorescent Assay).

Confirmation services also available.

Equipment

BioMerieux VIDAS

Method reference

AOAC 2013.11

Reportable unit

Environmental: positive or negative

For 25g test
In Food Products: positive or negative/sample size (25g)

For 125g (Composite) test
In Food Products: positive or negative/sample size (125g)

Sample size requirements

Environmental: 1 swab/test
In Food Products: 500g

Additional information

VIDAS Listeria monocytogenes Xpress (LMX) is an enzyme immunoassay for the detection of Listeria monocytogenes antigens using the ELFA method (Enzyme Linked Fluorescent Assay).  Note that a percentage of all raw commodities may contain an inherent low level of these organisms.

PCR and ELFA Method Comparison – Which method should I choose?

Both test methods will provide accurate results. See the table below for a high-level test comparison.

Assay What does this test measure?  Test Advantage
PCR
GENE-UP®		 Molecular Assay Detects pathogens using target sections of DNA that are specific to that pathogen, making the assay more sensitive than the VIDAS. Fewer false negatives and fewer false positives.
ELFA
VIDAS		 Immunoassay Detects pathogens by having proteins bind to pathogen-specific receptors. More cost effective.
*Prices and offerings are subject to change without notice.

Common Listeria monocytogenes (ELFA) Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.

Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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