Retinol, alpha-tocopherol and fatty acid content in Bulgarian black Sea fish species

M. Stancheva; B. Galunska; A. D. Dobreva; A. Merdzhanova

doi:10.3989/gya.069611

Autores/as

M. Stancheva Department of Chemistry, Faculty of Pharmacy, Medical University of Varna
B. Galunska Department of Chemistry, Faculty of Pharmacy, Medical University of Varna
A. D. Dobreva Department of Chemistry, Faculty of Pharmacy, Medical University of Varna
A. Merdzhanova Department of Chemistry, Faculty of Pharmacy, Medical University of Varna

DOI:

https://doi.org/10.3989/gya.069611

Palabras clave:

Alosa pontica, Mar Negro, Neogobiusrattan, Sprattus sprattus, Trahurus medditeraneus ponticus

Resumen

El objeto de la investigación presentada es definir y comparar los lípidos totales, el perfil de ácidos grasos y el contenido de retinol y alfa-tocoferol en el tejido comestible de cuatro especies de peces con importancia comercial del Mar Negro búlgaro —espadín (Sprattus Sprattus), gobio de boca negra (Neogobius Melanostomus), chicharro (Trachurus Trachurus) y sábalo del Mar Negro (Caspialosa Pontica). Dos vitaminas liposolubles son analizadas simultáneamente mediante cromatografía líquida de alta eficacia (HPLC). El contenido mayor de retinol se encuentra en el espadín (142.3 ± 4.4 μg/100g), y de alfa-tocoferol en el chicharro (1112.7 ± 39.2 μg/100g). El contenido de ácidos grasos ha sido analizado mediante cromatografía gaseosa/espectrometría de masas (GC/MS). El contenido de ácidos grasos (AG) omega-3 (n3) es considerablemente más alto que el contenido de ácidos grasos (AG) omega-6 en todas las especies analizadas. La proporción n6/n3 está en el intervalo recomendado (0.2-1.5) para el espadín, el gobio de boca negra y el sábalo del Mar Negro. Los niveles relativamente altos de retinol, alfa-tocoferol, relaciones de ácidos grasos, n6/n3 AG y PUFA/SFA muestran que todas estas especies de peces poseen buenas propiedades nutricionales.

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Citas

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