Methods

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A recent study has analyzed methods of environmental monitoring for Listeria monocytogenes in food production facilities, comparing two alternative methods against a traditional culture-based method.

Researchers from the New Jersey Institute of Technology (NJIT) have developed a method of detecting toxic per- and poly-fluoroalkyl substances (PFAS) in food packaging, water, and soil samples in three minutes or less.

Ongoing debates about the use of rapid microbiological test methods in food safety have led to the rise of many questions about the future of this type of testing. This column will explore which methods are being used, food processors' views on what attributes of the tests are most important, how fast is fast enough, and what even faster tests would enable them to accomplish. It also explores where the growth may continue and whether rapid methods used in commercial labs will continue to drive growth, or if a plateau is likely. Growth in regions outside of the U.S. and Europe will also be examined, along with whether rapid testing technology is evolving to the point where it may be acceptable to bring back the analysis to an in-plant lab.

Salvus LLC seeks partner companies to commercialize technology that enables more timely PFAS management and remediation decisions.

A recent study published by the European Food Safety Authority (EFSA) as a supporting publication has revealed that certain genetic criteria may determine the food safety of genetically modified organisms (GMOs), and could lay the groundwork for developing new methods to assess the risks of genetically engineered food and feed.

A fully automated assay to detect Cyclospora cayetanensis, developed under a Research Collaboration Agreement between the U.S. Food and Drug Administration (FDA) and Rheonix, is now available to food and environmental testing laboratories, and has been proven to achieve consistent detection rates in samples of high-risk fresh produce with low levels of oocysts.

Two complimentary studies funded by the Center for Produce Safety (CPS) are using genomic sequencing technology to examine how storage conditions affect microbial growth on pears, with a focus on Listeria monocytogenes.

ColloidTek’s Collo Analyzer is a new method for real-time liquid process quality monitoring. Based on EMF sensors and machine learning, the technology detects various contaminants and identifies potential risks in liquid processing with a single real-time measurement and instant, inline analysis.

Ongoing debates about the use of rapid test methods in food safety have led to the rise of the question: Has the vast increase in outsourcing testing to contract labs made rapid methods less useful, or is the ease of use and speed of the methods still important (if not essential) for better management and decision-making in food safety? Food Safety Insights asks food safety professionals their opinions on this question.

Through a newly forged partnership, Oxford Nanopore’s sequencing devices and kits, combined with WeNou’s expertise, will be leveraged to develop a validated food authenticity rapid test that meets industry standards.