Money, however, is not all that is at stake when it comes to food fraud. It also threatens the livelihood of legitimate farmers, fishermen and other producers. People with allergies who unknowingly eat substituted products could suffer a life-threatening allergic reaction, such as if olive oil is diluted with peanut oil. Pork contamination in food sold as Halal or Kosher can cause someone to unknowingly violate their religious beliefs. It’s impossible for legitimate producers to compete with a fraudulent brand that is using cheap ingredients yet marketing that product as expensive. And because the supply chain for our food is global, there are many places from the farm or fisherman to the restaurant where substitution can be made, making the problem difficult to detect and control. However, there is a solution: detection of food fraud is possible with genetic testing.
In medicine, genetic testing techniques like Polymerase Chain Reaction (PCR) is commonplace by reading DNA from a sample. These same techniques can also be used to detect food fraud and substitution. By collecting small samples of the food and analyzing the DNA it contains, and then comparing the results to a library of genetic data from samples of known authentic species, we can quickly determine if a product has been wholly substituted or adulterated with another meat or seafood. Unlike medical testing, where the analysis can be done in hospitals and medical labs near the patient, our food source is widespread globally and testing is needed in every area of the globe. Making this technology portable, so the testing can be performed in the field, at a food processor, on the dock and in ports with customs inspections, is also now possible.
Legally, only one type of fish (the Ictalurus genus) can be called “Catfish” in the United States. It is known, however that Asian importers have been marketing other types of fish as U.S. farmed catfish. These imported imposters are typically farmed in overcrowded unsanitary conditions and sold at lower prices to undercut the sales of authentic U.S. catfish.
To ensure their credibility and brand reputation, a seafood distributor sourcing catfish came to InstantLabs to make sure their product was authentic. Up until this point, they had been sending product samples by courier to a testing laboratory company in a Midwestern U.S. state, but this process was both expensive and time consuming. Instead, they instituted real-time PCR testing using the portable InstantLabs Hunter® instrument, which is about the size of a shoebox and allows species testing to be done anywhere in less than 2 hours. This allowed them to personally test the fish that they were buying, at the point of sale to verify that what they were getting was authentic.
The concern about fraud can go beyond strictly food. Producers of Halal goods need to be vigilant for the presence of pork in any of their products. In one case, routine Halal testing in Malaysia unexpectedly showed traces of pork in a U.S. nutraceutical manufacturer’s dietary supplements. It was later determined that, while the manufacturer’s nutraceutical products themselves were free of pork, pork gelatin had been inadvertently used in the manufacture of the gelcaps. This company also contacted us to establish a program testing each lot of incoming ingredients and outgoing products to ensure their product purity and compliance with Halal regulations.
Unless you are certain about what you are serving, your business and your reputation could be at risk. Food fraud can be minimized by working with reputable suppliers that perform regular third-party audits. But the criminals who are committing food fraud know how to side-step some of these controls so testing needs to be part of a comprehensive program.