Tag: Q Laboratories

New certificate Autof ms1000 Method for confirmation of Salmonella spp.

MicroVal approved the issuing of a certificate for Autof ms1000 method from Autobio Diagnostics Co, Ltd. This method is a mass spectrometer system using Matrix Assisted Laser Desorption/Ionization Time-of-Flight (MALDI-TOF) for the confirmation of isolated colonies of bacteria, yeasts, and molds from a variety of agar media.

Q Laboratories performed the validation study. The study was conducted in accordance with ISO 16140-6:2019 and reference methods ISO 6579-1:2017 and ISO 6579-1:2017/Amd 1:2020. The scope of validation covers the confirmation of presumptive Salmonella spp. colonies isolated from selective and non-selective agars under specified conditions, supporting a genus-level claim.

This validation confirms that the Autof ms1000 method provides a reliable alternative for the confirmation of Salmonella spp. in food chain testing, strengthening confidence in microbiological safety and quality assurance.

The certificate and detailed summary report of this study (2023LR116) are available on our website, under “ISO 16140-6 (Confirmation and serotyping methods)”.

First certificate for InviScreen ® Salmonella spp. Detection Kit

A first MicroVal certificate in 2025 has been issued. In January 2025, MicroVal approved the issuance of a certificate for InviScreen® Salmonella spp. Detection Kit, supplied by Invitek Diagnostics. The validation of this detection kit was conducted by Q Laboratories.

The reference methods used were ISO 6579-1:2017 and ISO 6579-1:2017/Amd 1:2020, following the guidance of ISO 16140-2:2016. The validation scope covers a broad range of food claim and includes the following 6 categories:

  • Heat Processed and Raw Milk and Dairy Products (25 g)
  • Raw and Ready-to-eat (RTE) Meat Products (25 g)
  • Raw Poultry Products (25 g)
  • RTE and RTRH Poultry Products (25 g)
  • Eggs and Egg Products (25 g)
  • Fresh Produce and Fruits (25 g)

The InviScreen® Salmonella spp. Detection Kit enables real-time PCR detection of Salmonella spp. in a wide variety of food products, providing same-day results for all validated matrices. The method consists of four steps: enrichment, DNA extraction, real-time PCR detection, and interpretation of results. The real-time PCR assay can be performed using two commercially available real-time PCR instruments equipped to detect fluorescence emissions in the FAM and VIC or HEX channels.

The certificate and the validation report (2023LR127) can be found on our website.