*Price of the test:
For 25g test
$37 per analysis
For 125g (Composite) test
$44 per analysis
Acceptable Matrices:
Food and Environmental Samples
(For environmental samples, only 25g swaps are accepted)
Unacceptable Matrices:
Cosmetics, non-food samples
Detection Limit:
For 25g test
This is a qualitative test per swab or 25g sample
For 125g (Composite) test
This is a qualitative test per 125g sample
Sample Size Requirements:
For 25g test
1 swab/test
50g – 100g
*100g required if matrix verification is needed
For 125g (Composite) test
Minimum of 500g
Equipment:
Biomerieux GENE-UP
Reportable Units:
For 25g test
Suspect positive or negative/sample size (swab or 25g)
For 125g (Composite) test
Suspect positive or negative/125g
Turnaround Time:
7-9 business days
Is rush testing available?
No
Method Reference:
AOAC 2019.10
Method Description:
GENE-UP® Listeria spp. 2 (LIS 2) is a real-time Polymerase Chain Reaction (PCR) assay for the detection of Salmonella in food, pet food and environmental samples.
Additional Information:
GENE-UP® Listeria spp. 2 (LIS 2) The assay is a molecular assay that uses Fluorescence Resonance Energy Transfer (FRET) technology during PCR and the amplified target is detected by the GENE‑UP® Thermocycler.
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. |
Contact Us:
If you have questions about our testing services, please contact us at +1 (800) 245-5615.
*Prices and offerings are subject to change without notice.