A New Approach Against Food Frauds: The Portable Near- Infrared Device for Fish Fillets Identification

Simona Sciuto¹*, Giovanna Esposito¹*, Luana Dell’Atti¹, Francesco Rossi², Maria Vittoria Riina¹, Gabriele Merlo³,Luca Magnani³, Alfredo Benso², Elena Maria Bozzetta¹ and Pier Luigi Acutis¹

• ¹1Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Turin, Italy
• ²Politecnico di Torino, Turin, Italy
• ³Esselunga SpA, Biandrate, Italy

Received: May 11, 2021   Published: May 26, 2021

*Corresponding author:Giovanna Esposito, Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle d’Aosta, Turin, Italy

DOI: 10.32474/SJFN.2021.04.000177

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Abstract

The demand for analytical methods for fish product authenticity has increased dramatically, particularly in rapid and nondestructive food authentication. Near-infrared (NIR) handheld devices can meet this need for fast, reliable, non-destructive and in situ analysis. Aim of this study was to verify fish fillets species by using a pocket-sized NIR sensor, called SCiO, a handheld NIR spectrometer that can easily scan solid and liquid samples. The species were chosen from among the most commonly sold on the market as fresh. Samples were divided in two groups, one for calibration and one for validation. The first was performed to set up the instrument and the second to cross-validate model performance. The fish species were correctly identified with a global accuracy between 93.97% and 96.58% and were all confirmed by a validated method based on genetic marker. The samples correspond to the declaration, suggesting this method as a good screening approach to avoid fish frauds with good accuracy.

Keywords:Fish Fillets; Species Substitution; NIR; SCiO