R&D centre AZTI-Tecnalia has developed a new method of authenticating canned tuna - which makes it possible check if a product is albacore, yellowfin, bigeye or another tuna species within 24 hours.

AZTI-Tecnalia has developed a new method of authenticating canned tuna. Credit: AZTI-Tecnalia

AZTI-Tecnalia has developed a new method of authenticating canned tuna. Credit: AZTI-Tecnalia

AZTI-Tecnalia says that authentication methodologies for canned products are generally based on DNA fragment detection in any kind of processed fish sample, including canned fish. These methods, known as genetic methods, are always very reliable but the downside is that it takes several days to obtain a conclusive result. However, this innovative system is based on fluorescent probe detection and enables an accurate result within 24 hours.

This methodology will be of great interest to the canning industry and is a tool that can help to authenticate what it says on the label.

The DNA system has received accreditation from the National Accreditation Body (ENAC), and not only offers speed in identifying species, but also reliable, conclusive results. This new method can now guarantee that products are properly labelled.

The Molecular Biology Laboratory at AZTI-Tecnalia is continuing to develop new methods to authenticate many marine species in order to provide effective tools for the fishing and canning industry to ensure their traceability systems.

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