The Validation of the Sample6 DETECT^TM HT/L for AOAC Research Institute

Area of Science:

• Food Safety and Microbiology
• Pathogen Detection Technologies

Background:

• Listeria species are significant foodborne pathogens causing high mortality, especially in vulnerable populations.
• The Sample6 DETECT HT/L Kit is a semi-automated system for detecting Listeria spp. in environmental samples using BioIllumination technology.

Purpose of the Study:

• To evaluate the performance and reliability of the Sample6 DETECT HT/L Kit for Listeria spp. detection.
• Assessing inclusivity, exclusivity, robustness, consistency, stability, and matrix performance of the assay.

Main Methods:

• Comparative study using an unpaired design.
• Performance evaluation against the U.S. Food and Drug Administration reference culture method for Listeria.

Main Results:

• The assay demonstrated high inclusivity and exclusivity, correctly identifying all target Listeria isolates and excluding nontarget strains.
• The assay showed robustness against minor variations in incubation and sample volume, with consistent results across production lots.
• Matrix study confirmed accurate Listeria detection with no significant difference from the reference method.

Conclusions:

• The Sample6 DETECT HT/L assay is a dependable method for detecting Listeria species on stainless-steel environmental surfaces.
• The assay provides reliable results after a 22-hour enrichment period.