Abstract
Lipid composition by class, fatty acids, natural antioxidants (carotenes, tocopherols) and physicochemical characteristics of liver oil from three commercial rays, Rhinoptera bonasus (Chucha), Aetobatus narinari (Pinta) and Dasyatis americana (Bala) from the Gulf of Mexico were analyzed. Liver oil yield for R. bonasus, A. narinari and D. americana were of 43.04, 41.2 and 38.2% (wet weight), respectively. Triacylglycerols were the most abundant lipid by class in R. bonasus (68.9%), A. narinari (85.9%) and D. americana (81.6%), while sterols esters, sterols, di- and monoacylglycerides, polar lipids and wax esters were found in minor proportions. Species showed similar carotenes concentration, 8.7, 12.8 and 8.0 μg/g for R. bonasus, A. narinari and D. americana, respectively. α-tocopherol concentration was higher (p < 0.05) for A. narinari (46.7 mg/100 g) than for R. bonasus (21.0 mg/100 g) and D. americana (13.7 mg/100 g). Omega-3 polyunsaturated fatty acids in R. bonasus were high with docosahexaenoic acid (12.1%) in a higher proportion than eicosapentaenoic acid (7%).
Original language | English |
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Pages (from-to) | 323-328 |
Number of pages | 6 |
Journal | JAOCS, Journal of the American Oil Chemists' Society |
Volume | 86 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2009 |
Bibliographical note
Funding Information:Acknowledgments Authors want to thank Salomón Ortega Her-nández, Sonia América Arellano Cahuich (owners of ‘‘Pescados y Mariscos, S.A.’’) for their extraordinary support for the samplings in the present study and also to Manuel Huchín Maturel (from Centro Regional de Investigaciones Pesqueras de Lerma) for his support in Campeche. This study was part of the Project ‘‘Aprovechamiento del hígado de raya para la obtención de aceite rico en ácidos grasos poliinsaturados omega-3’’ (#CAMP-2005-C01-058) supported by the Fondo Mixto del Consejo Nacional de Ciencias y Tecnología (CO-NACyT)-Gobierno del Estado de Campeche.
Keywords
- Food and feed science
- Nutrition and health