Resumen de Fatty acid and lipophilic vitamin composition of seaweeds from Antalya and Çanakkale (Turkey)

F. Caf, N. Şen Özdemir, Ö. Yılmaz, F. Durucan, İ. Ak

• español

  El perfil de ácidos grasos y vitaminas lipófilas se determinó en cinco algas comestibles: Corallina elongata J. Ellis y Solander, 1786; Cystoseira barbata (Stackhouse) C. Agardh, 1820; Jania rubens (Linnaeus) J.V. Lamouroux, 1816; Laurencia obtusa (Hudson) J.V. Lamouroux, 1813; y Sargassum vulgare C. Agardh, 1820. Los ácidos grasos saturados (AGS) fueron el grupo principal de ácidos grasos, y el C16:0 fué el mayoritario de los AGS (34-40%). El ácido C16:0 fue más elevado en las algas pardas (C. barbata, 40.55%; S. vulgare, 37.11%) que en las algas rojas (C. elongata, 36.5%; L. obtusa, 34.57%; J. rubens, 34.22%). El resto de los ácidos grasos en las algas marinas de las especies analizadas, fueron los MUFA: C18:1n-9 and C16:1n-7. Además, el EPA se encontró en niveles significativos en las algas rojas, mientras que el DHA no se detectó en las especies analizadas. Los resultados mostraron que la diferencia entre las especies no es estadísticamente significativa ( p = 0.09–0.11), aunque las diferencias entre dos familias (Sargassaceae y Corallinaceae) fueron significativas ( p = 0.006) en el perfil de ácidos grasos ( p < 0.01). Además, las diferencias entre las familias Corallinaceae y Rhomomelaceae fueron parcialmente significativas ( p = 0.011-0.013) ( p

• English

  The lipophilic vitamin and fatty acid profiles were determined in five edible seaweeds: Corallina elongata J. Ellis & Solander, 1786; Cystoseira barbata (Stackhouse) C. Agardh, 1820; Jania rubens (Linnaeus) J.V. Lamouroux, 1816; Laurencia obtusa (Hudson) J.V. Lamouroux, 1813 and Sargassum vulgare C. Agardh, 1820. Saturated fatty acids (SFAs) were the major fatty acid group, and16:0 formed the highest SFA content (34–40%). 16:0 was higher in the brown seaweeds (C. barbata, 40.55%; S. vulgare, 37.11%) than in the red seaweeds (C. elongata, 36.5%; L. obtusa, 34.57%; J. rubens, 34.22%). The other major fatty acids in the seaweeds were 18:1n-9 and 16:1n-7 from MUFA in the analyzed species. In addition, EPA was found in significant levels in the red seaweeds, whereas DHA was not detected in the analyzed species. The findings showed that difference among species were not statistically significant (p = 0.09–0.11), yet differences between two families (Sargassaceae and Corallinaceae) were significant (p = 0.006) in the fatty acid profile (p < 0.01). Also, differences between the Corallinaceae and Rhomomelaceae families were partially significant (p = 0.011–0.013) (p < 0.01). K1 and K2 vitamins as well as δ-tocopherol, α-tocopherol and retinol acetate were determined to be present in the seaweed extracts. Finally, ergosterol, stigmasterol and ß-sitosterol were found in all samples in differing ratios per species.