AI Article Synopsis
- - Two juvenile Lagocephalus sceleratus fish were caught in the North Aegean Sea in 2017, and a new detection tool for tetrodotoxins (TTXs), which are harmful neurotoxins, was tested on them.
- - The detection tool found TTXs in both fish, with some tissues containing toxin levels near or above 2 mg/kg, challenging the earlier assumption that these juveniles were non-toxic.
- - This is the first report of high TTX levels in small Lagocephalus sceleratus, raising concerns about consumer safety as these toxic fish can be confused with edible species, emphasizing the need for accessible TTX detection tools to ensure seafood safety.
Article Abstract
Two small Lagocephalus sceleratus juveniles were captured in picarel targeting catches from North Aegean Sea (Greece) in the autumn of 2017. An electrochemical immunosensing tool using magnetic beads as immobilisation support was developed and applied to the rapid screening of tetrodotoxins (TTXs), potent neurotoxins that constitute a food safety hazard when present in seafood. This tool revealed the presence of TTXs in both individuals. Results were compared with those provided by mELISA and LC-HRMS, the latter confirming the presence of TTX. Some of the tissues contained TTX contents close to or above 2 mg/kg. L. sceleratus juveniles had been considered as non-toxic and, to our knowledge, this is the first report of high TTX levels in small L. sceleratus individuals. Such specimens can be mistaken with other edible species, posing a threat to consumers. The availability of low-cost and user-friendly tools for TTXs detection will contribute to guarantee seafood safety.
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| http://dx.doi.org/10.1016/j.foodchem.2019.03.148 | DOI Listing |
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