Molecular Detection for Rapid Food Pathogen Testing and Identification

Assurance® GDS system for food pathogen detection

The Assurance® GDS genetic detection system combines the latest advancements in molecular detection technology and food microbiology to provide faster results with the increased accuracy required to meet today’s food and environmental testing challenges. The Assurance® GDS system comprises three simple steps: Sample enrichment, Sample preparation assays utilizing our innovative GDS PickPen® immunomagnetic separation (IMS) device, and PCR analysis with the GDS Rotor-Gene® thermal cycler.


The Assurance® GDS system comprises three simple steps


Test for key foodborne pathogens, including Salmonella, Listeria spp., Listeria monocytogenes, Cronobacter, E. coli O157:H7 (EHEC), and Shiga toxin-producing E. coli (STEC) with confidence.

We offer multiple formats, including options that can be fully automated using the Assurance® GDS PickPen® PipetMax® (PPMX) system

Fast and accurate pathogen detection with the Assurance® GDS system


From start to finish, the Assurance® GDS system is designed to be simple, flexible and easy to run.

  • No centrifuge or heating block required
  • Eliminates associated steps and waiting periods
  • Not dependent on frequently ambiguous melt curve analysis after amplification to determine results
  • Multiplex platform allows for the simultaneous detection of multiple targets within each amplification tube
  • mEHEC® media, a fast proprietary enrichment, has been harmonized for use with Salmonella, EHEC, and STEC assays, for results in as little as 8 hours

The Assurance® GDS Rotor-Gene® instrument Speed

Faster than many conventional thermal cyclers, the Assurance® GDS Rotor-Gene® instrument is an innovative centrifugal air-exchange thermal cycler that puts a new spin on things.

  • Its constant rotary motion overcomes the heat equilibrium issues inherent in conventional Peltier block systems and lowers dwell time, resulting in faster results
  • Save over 2 hours of amplification time per run


Patented primers and probes ensure greater accuracy.

Each amplification tube contains a set of highly specific patented primers(probes) and a discrete internal control which ensures the highest level of specificity

  • Minimizes potential for cross-reactivity with non-target organisms
  • Fewer indeterminate or false positive reactions
  • Greater confidence in results
  • Three levels of specificity give reliable pathogen identification


Assurance® GDS PickPen<sup>®</sup>The latest innovations in genetic detection technology and food microbiology for rapid accurate detection method.

  • Our proprietary magnetic particles capture the target organism from the enriched sample
  • The innovative Assurance® GDS PickPen® concentration device quickly and easily collects and transfers the concentrated target—8 samples at a time
  • The sample preparation procedure is practical, efficient and simple to run


Assurance® GDS delivers a greater amount of quality DNA for analysis, ensuring a higher degree of sensitivity.

  • Its innovative patent-pending sample preparation procedure utilizes proprietary magnetic particles to capture and transfer the target organisms from the enriched sample to the amplification tube
  • Concentrated sample makes more DNA available for analysis allowing for a shorter enrichment

Microbiological method validations

Our Assurance® GDS kits have been validated for a range of sample sizes and multiple sample matrices, including Meat, Poultry, Dairy, RTE Meat, Produce, Seafood, Eggs, Infant Formula, Chocolate and Environmental Surfaces.

Cronobacter II Salmonella Listeria spp. Listeria monocytogenes
MicroVal 2017LR77 AOAC OMA 2009.03
AOAC PTM 050602
Health Canada MFLP-36
AFNOR TRA 02/12-01/09
MicroVal 2015LR50
AOAC PTM 070701
Health Canada MFLP-08
MicroVal 2010LR31
AOAC PTM 070702
Health Canada MFLP-07
MicroVal 2014LR32
E. coli O157:H7 Shiga Toxin Genes (O157) Top 7 STEC  
AOAC OMA 2005.04
AOAC PTM 101901
Health Canada MFLP-16
MicroVal 2015LR49
AOAC OMA 2005.05 AOAC PTM 071301
AOAC PTM 071303
AOAC PTM 101502

Assurance® GDS kits

Description Cat No.
Salmonella Tq 71008BC
Salmonella HET Tq 71022BC
Listeria spp. Tq 71009BC
Listeria monocytogenes Tq 71010BC
Cronobacter Tq II 71038BC
E. coli O157:H7 Tq 71007BC
MPX Top 7 STEC 71015BC
Top 7 STEC (eae) Tq 71017BC
MPX ID for Top STEC 71019BC
Shiga Toxin Genes (O157) Tq 71005BC
Shiga Toxin Genes (Top 7) Tq 71018BC
EHEC ID for E. coli O157:H7 Tq 71037BC
Poly IMS - Top STEC 61030BC

Automate your pathogen detection process with the GDS PickPen® PipetMax® (PPMX) system

Automate your pathogen detection process with the GDS PickPen™ IMS PipetMax® system

Automation for the Assurance® GDS method at a size and price accessible to any lab.

The GDS PickPen® PipetMax® (PPMX) instrument handles routine sample preparation to allow you to focus on other critical laboratory tasks.

  • Flexible modular design accommodates existing lab layout and workflows
  • Removes user variation and standardizes results
  • Efficient protocols for small and large runs maximize productivity
  • Reduces PCR sample prep labor by up to 50%
  • Small footprint saves valuable lab bench space